Although one could buy a gaming computer online quite easily, it would definitely be best to visit your nearest computer shop and inquire about getting one. That way, one can make sure that it is exactly right for itself, one will be supporting a local business, and if it gets damaged it would be far easier to get repaired.
Newegg.com
they have a large selection and they are online so you don't have to go to a store
poptropica and minecrart [ if you want to buy it ]
A good place to buy PC remote controls is online at places like Amazon's website. Another good place to buy a PC remote control is from a local computer store.
ebay
If you're looking to buy games that are good for the computer, I would recommend the Sims (1, 2, or 3 - they're all good), Spore, Fable, or Plants vs. Zombies. Addictinggames.com is a good site for playing free online games.
ikariumtribal warsbuildabearville.com where you can play games and buy clothes and it is free
video games- games stop, walmart, target board games-walmart target and places like that
Beyblade games can be purchased online at Toys "R" Us. The Beyblades website is a good place to buy games. Amazon or eBay are other websites where you can find these games online for purchase.
you have to buy them or download them
There are many options for you if you want to buy a computer battery. Electronics stores are a good place to start, and they often have deals or sales on computer accessories. Try going to Best Buy or Future Shop.
games.student.com/ is the best place for high school and college aged kids to check on games and if they are good or not. There are a lot of articles and suggestions on which games are the best to buy or rent.
only on computer games
Most any place you can buy a computer will offer computer financing. I would try some place like Dell, Best Buy or even Compact. You could even go to a rental place some where you can buy there and have a payment plan.