best way to upgrade git package

[deesto]

I'm running 10.10 with the latest (safe) updates. Unfortunately for me, this release includes a very buggy version of the `git` client for my purposes (v1.7.1). I'd like to upgrade this to a more modern version, but I can see from the Ubuntu packages page that the sheer number of dependent and related packages could make things a bit messy:
http://packages.ubuntu.com/maverick/git

This may be more of a question on bleeding-edge packages than on one specific package, but I'd like to know the recommended method for upgrading specific packages to something newer than the canonical version (is this just adding a repo? I see that Natty already has a better 1.7.3.2 version)? And once this is done, is this something that can still be maintained by aptitude?

[gmargo]

There's a ppa for the latest stable git:
https://launchpad.net/~git-core/+archive/ppa (https://launchpad.net/%7Egit-core/+archive/ppa)

[deesto]

Great; thanks gmargo. I can't add repositories using apt-add-repositories because I'm behind a proxy+firewall and the tool doesn't seem to like that, but this is another issue entirely.