Sure it is, rent the saw, costs about 50 bucks a day or less or you can get one of the cheap saws for about 100 clams, they do a fine job for small jobs.
A trowel and float will run 25 for both, max. if you buy the high end models.
It really is very do-able for the average DIY'er, in fact it's pretty amazing how easy it is.
You do have to take the time to plan things out very carefully, get your lay-out set so it looks good, then just go slow and set each tile in-line with the others.
Most important is the substraight, tile doesn't like to move so get it as stiff as you can.