From someone who has a DeWalt chop saw...
Get a bandsaw.
I got the 4x6 Bandsaw (the red one) from HF.
Right out of the box after I set it up, it was cutting within .005"...threw me for a loop too.
Not that its been a little...abused (fell over in a move a couple time), maybe not quite that :laugh:
It, with a coupon, will cost you about the same as a decent chop saw.
I RARELY use my chop saw anymore. The only time I've used it in the last year, was to cut my 4340 rear Yukon axle shafts down to size for my 14B, since the chop saw blade wasn't going to get through that alloy of steel.
I would cut 1/2" wall DOM any day with my bandsaw over a chopsaw. Set it, walk away, and wait for the piece to drop. Much cleaner cut, won't send crap everywhere, and won't heat harden the ends as you cut it.