Because water quality can get out of hand very quickly when cycling, it can be helpful to own your own test kits so you can test daily. The sticky in this forum on cycling tanks (here: http://www.aquariacentral.com/forums/showthread.php?t=84598) gives lots of good info on cycling both with and without fish in the tank. Based on what this article says, you could speed up your cycle if your local pet store would give you some pre-cycled filter media or gravel.