Cheers for your help mark!
I think i will go with the Internal ATA/IDE drive as its a lot cheaper (£40-£60).. and as my Mobo (Asus P4S8X) does not support SATA! Also i see so many drives (especially Maxtor) all with the same specs ie ide/ata, Buffer size,RPM etc but the only differences are the No's at the end. If these are just model No's,why the price difference? Also can they all be used for Capturing/Editing ?
PS-The drive i have installed is a 120gb Ultra fast ATA Maxtor 6y120L0 (2mb 7200rpm) would the extra 8mb buffer and the RPM make that much difference when editing/capturing ?

Also is it really essential that i install a new 1394 card as i do not have that much room due to a Video card cooler or maybe i can get one of those multimedia in/out interfaces (simular to Audigy 2 Platinum) if i did would it connect via my Mobo?
cheers Mate