Buy you a cheap Springfield 1911 model 45. Then put a 460 Rowland Kit on it. It carries the same punch as a 44 mag but in an auto platform. As a plus you can shoot 45 ACP in the same gun in the same clip.

http://www.sixguns.com/tests/tt460r.htm

http://www.clarkcustomguns.com/rowland.htm

http://www.realguns.com/archives/106.htm

http://www.realguns.com/archives/107.htm

That should give you plenty of reading material for a while.