Go check out the Performance shoes. You will get the same sales there as online, or you can order through www.performancebike.com and have them delivered to the store and if they don't fit, order something else.

I am surpsrised you are on aerobars?? Any reason for that? They are not allowed on some portions of the TdF, and many folks consider them a bit dangerous as they don't provide the best control, especially for beginners. I've never used them, and I see them on the trails and rides around here only with those who are high performance riders.