I have a Milwakee metal chop saw with a 14 inch blade that does the job. It's loud and it sprays sparks all over the place. I use the abrassive disks in it and they last a decent amount of time. It was $125 and I use it a few times a year. For the money, it was a good buy and I'd do it again. I'd love to have a ban saw for cutting metal, but can't really justify the expense. The problem I have with Harbor Freight is that their reputation on power tools is that it will fail early, and things get loose on their stuff. It's not worth the small savings to have to bring it back for a replacement in my opinion. If you have to stop working, drive down there and get another to finish the project your working on, the savings you spent on it just isn't there anymore. While I'm not a big fan of Milwakee tools, it's a decent tool for occasional use. I also cut cultures stone and bricks with it.
Eddie