A good place for Replacement UPS Batteries?

Does anyone know of a good place online to find replacement batteries for a UPS? I found a place that has both of the batteries that I need, ebatts.com, but they only have 3 reviews on resellerratings.com. 2 of them are almost 2 years old, but the newest is from January 17th 2005, and is positive.

I also found a place called batterysavings.com, but they have a pretty bad resellerrating.

The parts that I need are ase follows:

Minuteman Pro 520 - Battery Part Number: GP 1270 F2
Minuteman Pro 1000 - Battery Part Number: GP 12110 F2 - It needs 2 of these

If anyone else has found a good place, let me know.
The ebatts.com also has free shipping.

bump for a really good question.........i am in need of good batteries myself and i dont want 2 pay the retail price..............

I buy UPS batterys from ZBATTERY . There part numbers are different than OEM so you will have to search by mAh and size.

Reseller ratting