upgrade is this any good? well i guess i will have to upgrade. how does this system sound to you bare bones? Case Antec SX1000 w/ Enermax 350W PSU Motherboard Asus P4S533 DDR mainboard CPU P4 2.0GHz Retail Box HSF Retail RAM 1X512MB Mushkin PC2100 2-2-2 I was offered this for around $800.. is this any good? what is rambus by the way since it doesnt come with it? also dont p4 MB's have onboard NICS? I will install my own gef 4 ti 4200 and audigy card? is this memory any good? what about the MB?