Look at this baby for Genestealers. I'm absolutely finding a reason to steal it for my guard.
@GP, rules are pretty much the same price they always are. You can probably find one of the little books out of a starter set for 20 bucks or cheaper. The full sized 40k rulebook is I think $60. (All my prices are in Canadian because converting things is hard yo.)
Genestealers are about to get a codex, Sisters of Battle have one coming (Woohoo!) and just about everyone else has a current codex. I think, am I missing an army? Harlequins maybe or one of the flavours of space marine?