Well I have a problem with power computing too. I made the mistake to order a Magic Pack from them.
Not only were there delays (It wasn't on stock and they didn't notify me until I mailed them) but when I finally got it, it was damaged. They said they would send a replacement motherboard but I'm still waiting for it. It seems I'll be waiting for a long time (actually for ever) unless I do something about it.
One thing's for sure. I'm not buying from them again :-)