Have you tried just warranting your blown power supply with Antec? Most of their stuff comes with a 3 year warranty and it may not hurt to check it out. I've had good success in dealing with their support.
http://www.antec.com/us/support.html
Other than that, either the Mushkin or the Ultra power supply will work with your system. Both are good quality units, with proven track records. From what you've shown us of your system, either one will have all the proper connectors for your motherboard, drives, and video card. Both are modular units which can help eliminate cable clutter. Both are quiet units. The Ultra one is a very nice looking unit, but also seems to be more expensive. The Mushkin is right in your pricerange, esp if you get the rebate. If possible, try to buy from a place that will accept returns (I've never dealt with Newegg since we don't have those in Canada, but they probly have a good return policy and a lot of people seem to buy from there).
Other than that, I agree with Firewall....Google is your friend
