i agree with smithjjw..you can have your own option of relying on any payment processor that is universally accepted and has been in use since long..but at the same time you should also be careful about using them as the more popular a payment processing system becomes..the more obvious becomes its hacks by hackers who are always getting smarter..

i prefer paypal from my experience although i have never used e-gold..but i find paypal better than e-gold as far as its user interface is concerned..