you guys are good
Super thanks already to Nicole and Amy!
Matt... yes, a portable wet-saw for ceraminc tile is a decent choice. They are cheap (around $50 at Home Depot/Lowes, etc) and rather effective. A lapidary saw (used for cutting gems/stones) is far more precise... and far more expensive (unit and blades).
So... if you own an Aqua C or ASM/Euro-Reef style skimmer... then you buy the wet-saw for ceramic tile. Or... if you felt the need to buy a Deltec or Bubble-King skimmer... then you may be inspired to buy the lapidary saw.
All of the aforementioned instruments are very fine and effective in their respective categories equally so (generally speaking) and well enough for me. Knock yourself out.