extended batteries

[hamagc]

just wanted to get an idea of everyones opinion on the extended batteries for the touch pro. specifically the 1500mah (mugen/seidio), the 1800mah (oem), and the 2000mah (seidio).

things i am looking for:
how long before dead battery
size complaints

i see alot of threads on extended batteries but no one ever really spells it out on how well the battery did and if it was worth it or now. i know the 3000mah is just huge and i'm not really interested in it due to the size but it would be good info to include for others out looking.

links:
Mugen 1500mah: http://www.mugen-power-batteries.com...kumulator.html

Seidio 1500mah: http://www.seidioonline.com/product-p/basi15htcx1.htm

Seidio 2000mah: http://www.seidioonline.com/product-...20htch2-bk.htm

Mugen 3000mah: http://www.mugen-power-batteries.com...hatlappal.html