Here's what Im looking at: Asus A7S333 SKT A Supports AMD Athlon XP/Athlon/Duron processor AMD ATHLON XP1800+ 266GHz FSB Maybe more If I can stretch my budget. (Included Heatsink and fan) Crucial PC2700 256mb DDR CL 2.5 184pin DIMM Ive got a case (not sure if its ATX or AT though - how do I check), power supply (not sure of rating but what should it be?)... Seagate 40GB hard drive, floppy, DVD rom, mouse, keyboard, monitor, Matrox G200 graphics card and Sound Blaster 128 sound card (upgrading to Midiman Audiophile when I have spare £150). Will these work without conflicts, etc...? What have I overlooked, if anything? Thanks. PS: My PC is going to be for audio, not games or anything like that so please bear that in mind.