Extended Battery Compatibility / belt holsters

[JWhipple]

I have Verizon Touch Pro and am looking at both the Seido and Mugen 2000 mAh batteries.

I'm pretty much sold on getting a bigger battery , but wanted to know (to expand my options) if the battery for any other Touch Pro and battery cover would work with the Verizon phone.

Also - looking for any snap-in type holsters that would allow for the extended battery. Seido carries one but I think $25 for a piece of plastic with a belt clip on it is a bit steep.

Any feedback is appreciated!