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For my 1911 9mm Kimber Custom II, I ordered a Norinco mag (crap as expected, but mostly works) and a Tripp Research, direct order, ~45$ for a mag including shipping. It was well worth the money, it's built better than the kimber, works better than the kimber, and loads like butter. I've got a couple of Wilson mags coming as well.
The Chip McCormick Power 10 magazines are nice as well. The Tripp Cobra mags are cheaper at Northern Republic Magazine than bothering to order from the US. Only $41.99 and they offer free shipping.