I'll vouch for the DFI DK P35-T2RS. I've got one and it overclocks very well. It's only ~$20 more than the BloodIron, and worth it IMHO. I've got my Q9450 oc'd to 3.2ghz on stock volts, but it can go much higher with a little boost here and there.
Very stable, lots of options in the BIOS...