Other great PSP games: Syphon Filter Dark Mirror, Metal Gear Solid Portable Ops, MLB 07 The Show, Valkyrie Profile Lenneth.

It's best to have a powerful machine. At idle upon startup, 40% of my RAM is utilized by idle Vista processes (I've got 2GB of RAM). However, my system setup is (what I think is standard for a Vista machine) not super strong but I get good performance in Vista. The optimizations in the software (while had more overhead) is generally smoother and faster than XP for everyday use (apps load faster, run more stable). I run a C2D E6300, 2GB RAM, and X3000 GMA.