My dilemma is this...I have a desktop which is about 4 yrs old and I want to try to upgrade it primarily to use for making music. It's a gateway and the packing slip says it has: an AMD Athlon 800mhz (w/ performance enhancing cache memory), 128MB module, 32MB NVIDIA RIVA TNT2 M64 Graphics Accelerato, 20GB 7200RPM Qtm ATA66 Hard Drive, 12X/40X DVD ROM drive, and a 8x/4x/32x cd rw. Should I just add some new memory to it or would it be better to build a new system all together, and if so, what parts of the old system would be transferable to a new system which would be based around an AMD athalon 64 3000+ socket 939 processor?