Happy Thanksgiving guys
Sam, I'll second Allen's comments and add another opinion. When buying a portable table saw, opt for a 10" over a 8 1/4-8 1/2. You'll probably never use the full blade height with a 10" portable, but it's there should you ever need it. Also, it seems the smaller blades are getting harder to find these days while there are blade-tooth combinations a-plenty in the 10" line. Comes in very handy should you ever need to install composites such as laminate flooring etc.
If the 8 incher is the one in your sights, be sure to buy some spare blades at the same time so you won't have to search for one later.