- Ink is handy for painting lines and writing because it doesn't dry as quickly on a tiny brush. I don't think there's any use for it otherwise, and I think most people just add medium to their paint.
- Some people hit a model with a gloss coat at some point so that they can wash off all the paint afterwards. Like a "save point". I'm not so sure that makes sense; I say, finish the damn thing and move on to the next

Alternatively, just do the hardest parts first.
- Liquitex Flo-Aid (make sure to dilute it!!!!) is a very nice medium. There are a ton of other mediums and drying retarders; you'll need to read up on them and explore.
- There are lots of weathering powders. Secret Weapon Miniatures makes some neat ones.
- At a minimum, you must have a hobby knife, diagonal cutters and files. The
GW files are really nice (they're very fine diamond files), particularly if you work in plastic or resin. Diagonal cutters "are all the same", but I must admit the
GW ones feel awesome. The
GW hobby knife is junk. Just buy a No. 11 Xacto blade and lots of spare blades.
- Call fine arts stores for Winsor & Newton S7. Also consider Raphael 8404 for the smallest size (6/0) and W&N has only up to 3/0, which still has quite a large belly for painting things like eyes.
- Reaper & Vallejo have great paints and colors; some will fill gaps in the Citadel line (and vice versa). Many of the Vallejo paints are for historical models, so they are not ideal for fantasy/sci-fi. VMC/Game Color has less Orcish and Elvish greens, and more camouflage; forget about blues for force weapons and lightning bolts; purples, pinks and flaming reds are slim. But if you want 20 shades of olive green, there's nothing like Vallejo.
- I think you mean a head magnifier. Try Optivizor (I think that's what it's called). Some people swear by them.
- Table magnifier WITH LAMP is great, but mostly because you have an articulating lamp. I don't think I've ever used the magnifier on mine for painting. Good lighting is very, very important.
- Buy any hobby compressor with a tank, pressure regulator, and moisture trap, if you are willing to spend a little more (~$200 USD) in order to have a little less trouble.
- Paasche makes a great entry level double action gravity fed airbrush, the Talon. It comes in a kit with 3 different needle sizes and all the matching parts, plus a hose (really, all you will ever need to basecoat/prime). The kit is around $100 USD and is a fantastic deal.
Good luck