[onewhippedpuppy]

I can cross-cut up to 6" material pretty easily with my Craftsman miter saw. Beyond that it requires two cuts. Unless you are cutting wide material, you don't need the sliding feature. Go to a store and check out a lot of them, see what you like. Pay particular attention to the miter/bevel adjustments, and the table/fence. You want it to adjust easily, and support the work well. You can pick up a decent one for $150 and up.

Table saw is a different story. Short of a Biesmeyer fence, very few table saws have an accurate fence that clamps down truly square. Now, unless you're building cabinets, that might not be a big deal. Find something with a sturdy fence that easily clamps down tightly, and moves easily. Make sure the table is smooth and well finished, as well as the blade guard, so nothing holds up your work. Figure on $250+ for an ok table saw, and $500 for a decent portable one. Look for specials that have outfeed tables, they can be really nice when working alone.

If you're doing floors, I'd really recommend both. You'll need to make lots of square cuts when you butt to walls, and you'll have to rip boards when you go along a wall, unless you're insanely lucky and it just comes out perfect. Pick up a sabre/jig saw to cut out for vents, etc and you'll be set. If you're a DIY guy, having both will be a huge benefit to you.