Looking at new sound cards and was wondering which type to choose, I have avalible openings in both PCI and PCIe.

pci-e, more bandwidth available, and on a happy side note, youll get a frame of two persecond with your videocard.

PCI-E as PCI is being slowly phased out in favor of more PCI-E x1 slots on motherboards, so PCI-E would be more future proof.

Thats the way I was thinking as well on PCIe X1 being the way of the future.

Right now the pci-e sound cards are not real pci-e ones and there are the lower end ones that use your cpu unlike the higher end pci xfi cards that off load work from the cpu.

There is the Asus Xonar, which is an actual soundcard and doesn't use the CPU. I wouldn't buy a Creative soundcard if you ever want to use Vista.

Well like the other guys here mention, PCIe. Just stay away from Creative. They have poor business practices and drivers.

or windows 7, even if it supports vista