hey guys im quite new to the this computer stuff i paid £300 quid formy system and im looking to addd some new parts but need a little help according to the manual i have exspansion slots for pci-e.cold anybody give some advice. my mother board is a asrock K8 combo-z with 512mb ddr 400 ram,geforce 6600 128mb graphics card 80G harddrive AMD Athlon 64bit 2800+ 1.8GHz thanks again