Okay, just some quick thoughts:
1) Warrior Priest w/ Warhorse, Armor of Meteoric Iron, and Sword/Hammer of Might
The AoMI is more for foot-heroes, as horseback gives us a bonus to armor save. At low points games, even getting the cost-effective AoMI is a bit extravagant. I'd save some points, and drop the AoMI for heavy armor, a sheild, and barding on the warhorse. That'll give you a 2+ armor save, keeping your priest equally protected, and still giving you some points to play around with.
Hammer of Might is a one-handed, magic weapon. So, you can get a sheild with it. Or, if you want to save some points, you can get your priest a zweihammer... but on horseback the zweihammer isn't as impressive, after the charge attack. The other advantage of a zweihammer is that the way the Priest's gear is listed, you can get him a zweihammer, and a hammer-and-sheild combo... basically arming him to go against hard-armored enemies, or light-attack-enemies. Anyway, if you do decide to save some points and get the zweihammer over the Hammer of Might, just make sure your knights are getting the charge off... that way you won't suffer from any of the greatweapon penalties.
Lvl 2 Wizard
In the land of the blind, the one-eyed man is king. At 1000 points, most players might just bring a level 1 wizard, for the magical defense. Having a level 2 wizard means you actually want some magical offense. Especially coupled with the low-powered, free-spells the priest gives you. If you want to save some points, you might want to downgrade your wizard to a level one, and then buy him a dispell scroll. That'll still give you 4 dispell dice, plus 1 dispell scroll. You could even save some more points by just getting the level 1 wizard, and getting him no dispel scrolls.
If you want to keep him level 2, I'd suggest you give him a barded warhorse. You can have mounted characters in foot-infantry, and giving the wizard the warhorse, would give him a modicom of protection against small-arms fire, as well as some added mobility if you need it. I would suggest you put him in the swordsman unit, instead of your small unit of missile troops.
10 Crossbowmen
- Detachment of 5 Archers
Anything crossbows can do, Handgunners can do so much better. If you have them, get handgunners. And, if you can find the points, at least a musician.
Archers, for a detachment, are the 2nd to worst detachment available. Your handgunners really shouldn't have a detachment at all. What you might want to consider for all your archer detachments is to, rather, make them their own unit, and give them the "Huntsmen" ability. At low point games, you probably won't face against a lot of units that have "Scout", thus your Huntsmen can deny forward objectives, force your opponent into your avenues of attack, and act as harassment fire against wizards, lightly armored flanks, and enemy war machines.
2) 25 Swordsmen w/ Full Command
-Detachment of 10 Free Company
-Detachment of 5 Archers
Swordsmen are a solid, and should be a good anvil block for you. At smaller point games, you should be able to get away with 20 strong block of swordsmen. Also, remember that your character models displace your line models, so... if you put the wizard on horseback in your swordsmen unit, you only need 18 other swordsmen. The points you save could give you another small block of swordsman, or pay for some of the other upgrades/swaps being considered.
Free Companies are amongst the best detachments out there. Cheap, plentiful, and who cares if they die. I would suggest you just get a 3x3 block of them, instead of the 10-strong you have them at currently. 3x3 (or 9 strong), has enough staying power to give you the US of 5 for flanking effects. Experienced players, however, know how fragile detachments are, and will often charge the detachment, in an effort to get an overrun move into the parent company.
See above about the archers.
6 Knights w/ Full Command
With your Priest with your knights, you might consider just getting a 5-strong knight unit (which'll become 6 with the priest). It'll save you some points you can use elsewhere.
Your cannon and Pistoliers look good. If you can find the points, getting an Outrider champion with Repeater Pistol for the Pistoliers is a huge upgrade to their damage potential. But... everyone knows how dangerous the Pistoliers can be, so don't expect them to survive past turn 3... if that long. Pistoliers tend to soak a lot of auto-hit magic missile spells.
Anyway, just some quick thoughts.
