If you're in the west, the new Save-on-More rewards catalogue has a great deal on wet tile saws. It was going to cost me $60/day to rent one, plus blade wear, which would mean probably a minimum of $120 rental just to do my backsplash. I looked into borrowing a Dremel and buying the tile cutting attachment (which I can't find in stores) for approx $30, but I only have straight cuts with a few notches around recepticles to do, so I was worried about getting nice even edges. I was flipping through the Spring/Summer rewards book, and see that they have a wet tile saw for 4000 points + $55, or free with 36,000 points, and it comes with a free diamond blade. Not a bad deal!