I use a Mark Levinson No. 23 (200wpc), and I really like the sound. Whichever amp you get, I suggest that it have either plenty of power (150 wpc minimum) or plenty of current (i.e. monoblocks), or preferably both. I originally had a Levinson No. 27 (100wpc), and while the sound was pretty good, it really opened up the dynamic range when I doubled the power with the No. 23.
Remember that the Studios are fairly inefficient at 4 ohms, and have fairly low sensitivity at 86 db. Remember this if you decide to try out tube amps. (I.e. get pretty big monoblocks.) Also, the Revels are pretty revealing, so use the best electronics you can afford.
Good Luck in your choice.