i bought a psp 2 weeks ago. so far i have snes on it with FF3, chrono trigger, castlevania and others, neogeo CD with metal slug 1 and 2, king of fighter and others, scummv with sam-n-max, days of the tentacle and curse of monkey island.
i bought a 2gb stick for a great deal at $50 after rebates and adjustments. the 4gb just came out but insanely expensive. the old lucas art games looks amazing on the psp screen. the only thing i don't like is the direction buttons makes fighting games suck ass. there are mods to fix it, but i don't feel like voiding the warranty just yet.