I've heard that these are a horrible alternative to IrMan style devices because they use a lot of cpu.. I was just wondering, how much does it really use..? I've got a duron 1300, and I wouldn't mind giving up 5 or 10% cpu to save myself 60 bucks on an irman...
I have one from here. It's a lot the same. He sells them for $24 and has a parts list and guide for free if you want to build your own. I have a dual XP1800/1.53GHz and it doesn't lag at all, or at least I haven't noticed it lagging..