Reformatted the PC over the weekend and now have it fully running on Vista Home Premium 64 bit.

First impressions: impressed with the amount of functionality and cleverness of the OS compared to XP. My LAN and router worked straight away and have been fine since so it seems I havent been victim to vista's networking issues. Certainly looks the part as well.

My PC gets a Vista score of 4.8 which according to Vista is pretty damn good

Intel C2D E4300 (turned off the overclock for now but will start upping the speed once everything gets settled in)
Geil/OCZ 3GB DDR2 RAM
Gigabyte DS3
Nvidia BFG 7600GT
80GB Hard drive
19" Cibox Widescreen

Pleased so far