Im gonna be purchasing like 4 new singles, and I was wondering where the most fast and reliable place is..

Are you looking for imports or US releases? New or used?
There is a great site ~ www.eil.com ~ that has about anything you could want imported. They are fast and reliable. Ebay is great for new and used ~ you just have to read the descriptions carefully and watch the sellers feeedback. Amazon.com, and artistdirect are good for US and imports. There are many others but these will give you a start.

http://www.mattscdsingles.com


if you're looking for older, out of print, or obscure things, including promos and whatnot.

http://www.mattscdsingles.com

http://www.eil.com

matts doesnt have a whole lot but still alot of rare stuff.