Here's another place for free loops:

http://www.groovemonkee.com/en/

I have purchased from Groove Monkee and From Odd Grooves, and so far I find Groove Monkee's GM files much easier to navigate and use. If You use a plugin Like Addictive Drums or the others it will be just as easy to use both.

Odd Grooves are also, well "odd". so unless you are good with odd time signatures Groove Monkee would be a better choice. Groove Monkee also has a wider collection of styles to choose from, AND will re-map the drums for free if your midi device is laid out in a way that is different than general midi. both companies love suggestions and will respond quickly to emails.

Either way both are great. I have purchased frm both, but lean towards Groove Monkee for now.