I've set up MCPCs in XP and Vista using Media Centre and Media Portal. I'm about to do another and intend to use Win 7.  I'm not in a Freeview T serviced area so will be using a Hauppauge WinTV Nova-S card for FV and maybe Sky.  My preference is for 64 bit Windows but are there driver issues etc?  Am I safer saying with 32 bit or does the experience of others here suggest that 64 bit will be reasonably succesful?

Thanks in advance