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heh, we are talking bitcoin GPU mining. If a good video card can give 600+Mhs ( like a 7850), then a small rig churning 10Mhs isn't all that impressive. I'm not sure what you consider "low megahashes". everything is relative.
Wow - that's overclocked

Apparently you can get ~370MH/s out of a 7850 but I'd wonder how long it would last ...
my bad, that's a 100Mhs card, i got confused. I haven't had the chance to memorize the entire Hardware comparison chart yet. i occasionally get things mixed up.