I looked at the Hitachi, and almost bought one. It's only significant liability is the rip width- it didn't meet my needs for one of the two projects planned this year.
Like Jeff Todd above, I ended up going with the Ryobi BT3100- it's an amazing value, I got mine on sale for 10% off, it has an excellent fence, one of the best for under $800-$1000, and I also picked up the accessory kit and a micropositioner. It also comes standard with a rather good sliding miter table.
The manual has a very thorough setup and maintainence guide, and becuase this is a short belt drive with motor in cabinet saw, it has unusually good depth of cut capability- also important for one of my projects.
Yes, I did those bevel cuts on the BT3100, using a simple jig and the sliding miter table.
And yeah, those angles aren't supposed to be 90 degrees- the finished speakers will look something like these:
Additionally, there's a nice independent dedicated forum for the BT3000 and BT3100.
BT3 Central Forum
Obviously, the deal from your friend is the "right price". It just depends on what you need out of a saw.
Good luck, and happy building.
~Jon