Axiom Home Page Forums General Discussion The Water Cooler DIY HTPC builders, where do you purchase your OS?

I'm thinking about purchasing Windows XP MCE 2005, and was wondering where most of you buy your software for custom built HTPC's? In my IT field, I've been lucky from time to time as our Microsoft rep has given me some enterprise versions of XP, 2000, etc...

I was thinking about checking out local retail stores, but was wondering if there was a better option online?

Randy