Mike, I agree that they should be further along after a month, and probably need more warmth... you might also try a very dilute fertilizer solution. And I also totally agree with Elaine about the peat pots -- when you do plant them, water them well beforehand, and kind of rip open the sides of the pot with your fingers, then make sure the top edge of the peat pot is buried under the soil. If you don't open the peat pot up the roots often will never escape it (despite the theory of them being "plantable"), and if the top isn't buried the peat pot can actually wick water away from your plant.
That said, it does usually take 6-8 weeks to get transplant-size tomatoes
