For occasional use, I wouldn't bother buying a new one, as there are plenty of used ones available on Craigslist and in the pawn shops. I'd probably buy Makita, Bosch or Dewault, because that's what most of the professionals use. I've seen decent used Makitas available for $100- 150.
I use a 15 year old Delta 10 inch sliding miter saw - I think they called it a sawbuck, but not sure. It was unique in that it had a built in stand.
I actually have 2 of them, because I found an identical one for sale cheap on Craigslist a couple years ago. I keep one at my shop and one at home. I use them quite frequently on everything from plastic to copper tubing to aluminum, and of course wood. They'll cut about 10 inches wide, which covers most of what I ever do.