Wal-Mart PC: Should I Buy One?

I’d love to hear from readers who know a bit about the new Everex PC that Wal-Mart is carrying. It sounds like an under-powered PC to me. And at $200, I wonder if it’s too cheap to be an effective Web/personal productivity home computer for my kids. Anyone have any thoughts? I already have a Dell Ubuntu PC (I like it) and a MacBook Pro (I love it). I’m leaning toward an iMac for my next family PC. But I’m wondering if there are some good, reliable, low-cost alternatives with Ubuntu pre-installed. Thoughts on the Everex system — and alternatives — are welcome.