Re: Now that usb sticks are being sold by sidehack here is a new usb hub thread.
Oh cool, I just found out about USB mining and now there's a thread! 
I have some questions, though..
1. Where does one purchase USB miners?
2. What is they power and/or resources (CPU, RAM?) usage?
3. Are they worth it? I have in mind that I would like to mine altcoins, namely LTC I think.
You almost hit the right thread, this one is for what it takes to power them.... Try GekkoScience 2Pac BM1384 Stickminer Official Support Thread for all your answers. These days stick miners are only good for Solo Lottery mining as they are too under-powered for most pools to accept. I have some questions, though..1. Where does one purchase USB miners?
2. What is they power and/or resources (CPU, RAM?) usage?
3. Are they worth it? I have in mind that I would like to mine altcoins, namely LTC I think.
btw: the sticks ONLY do Bitcoin -- not altcoins.
Not all sticks, I have futurebits that are daily profitable for scrypt, by 10cents or so after electricity. but upfront cost is so high on sticks that ROI will be 20years or so at current difficulty.