I found this cheap Chinese site which has some interesting DIY electronics. Main thing is they're cheap and I've been told shipping is free (even on small orders).
I'm not personally into DIY modding, but I think if you're building your own mods, then you might want to check out : Buy Mini Servo, Emitter, LED Emitter, LED Light Strip & More Electronic Gadgets - DealExtreme
They do sell protected batteries at the best price I've seen, these are Trustfire batteries:
Battery, Batteries, Rechargeable Battery, Lithium Battery, Cell Batteries on Sale - DealExtreme
I'll just mention that I'm not affiliated in any way with this company, just found them to be a (possible) cheap source for modding parts and batteries.
I'm not personally into DIY modding, but I think if you're building your own mods, then you might want to check out : Buy Mini Servo, Emitter, LED Emitter, LED Light Strip & More Electronic Gadgets - DealExtreme
They do sell protected batteries at the best price I've seen, these are Trustfire batteries:
Battery, Batteries, Rechargeable Battery, Lithium Battery, Cell Batteries on Sale - DealExtreme
I'll just mention that I'm not affiliated in any way with this company, just found them to be a (possible) cheap source for modding parts and batteries.