Ok I just ordered this:
http://www.amazon.com/gp/product/B00...ef=oss_product
and this:
http://www.amazon.com/gp/product/B00...ef=oss_product
Im hoping the 20$ for the battery and case will yield a case that will hold the $35 HTC 2150 battery. If so I think I will have a winner. I will post a review and pics once it all arrives in a few days... I only have one EVO but so I cant do side by side pics, but my budyd has a Droid X so I can compare the extended batt and reg batt EVO side by side to that...