Thanks for the help guys. I guess I'll have to go with a B and hope that it's OK with the dozen+ 2.4ghtz cordless phones that are used in the immediate area.

I hate companies who put out windoze-only stuff!
<rant>
To do what I've already done with RedHat in Windoze, I would've needed about $3 grand in hardware and software and it wouldn't have been as stable or secure. So far I've spent around $400 and a few hours. Actually one of the reasons I'm building the machine is to get a machine that others can print to that doesn't stop accepting print jobs at random- the XP machine with the printer on it. Searched around for forever about what's going on, but since a reboot clears up the problem, it's no big deal. (A buddy of mine was having a different problem with XP and called MS about it. He was told that since a reboot cleared up the problem, to just do that. When he explained that this was a mission-critical system that couldn't be down, they told him that reboots were part of normal system upkeep. Great attitude- don't actually bother fixing your product, just develop put off the people who complain.
</rant>