I recently built a basic computer system. The mobo is MSI pm8m3-v (usb 2.0 , PCI 2.2 32-bit) It has LAN built in it already, but I want wireless internet. Should I get a usb device, or a PCI device I'm looking to download games/music/files stuff like that.

Also, is 300Mbps overkill for this basic Pentium 4 system? Is 108Mbps transfer rate really slow? I'm just looking for a transfer rate with decent speed (nothing real fast, or to slow). Thanks a lot for your input!

btw this is not a gaming computer of course. Just basic stuff