Its a Panasonic 4200uf (Low impedance - much harder to find) 10 volt Power cap. It comes with a surface mount support, that can easily be removed by bending the legs up. Its dimensions are 17X19mm without the support.
If you want to learn more about Power caps in general, see this article:
http://www.rczone.net/modules.php?na...rticle&sid=373
I paid $3.12 through Digikey for it (had to buy 5 at a time hence selling extras).
.90 cents for the original shipping divided.
Plus another 1.50 now to send it (with padded envelope price).
So total cost is $5.54
I will accept paypal or other. But if paypal if you can add the 3-5% that paypal deducts so I can still come out even.
Email/PM me for details.
Cdog4w already bought two off me, so he can vouch for them.
These should also work with xmods, though you have to be comfortable around a soldering iron.