I've got a decent selection of EA, Narn and Minbari - enough for an Armored Cavalry company of all three, plus extras (some of the EA gunships, a company of Minbari super-heavy grav-tanks, etc). I never got any Centauri, because I was waiting for their
SP artillery vehicle to be released so I could get an Armored Cavalry company of those, too. Sadly, it never appeared. :(
I also picked up a couple of Thunderbird 2 toys to convert into EA Magni heavy lift VTOLs when I was planning on using the EA in Dropzone Commander, but I never got round to doing the conversions. The standard Narn tank with the gun barrel removed also makes a pretty decent model of a Leviathan from Farscape if you paint it brown, too.