Git Bundle
You may have read that a lot of prominent people have recently moved to Git and are loving it. I too am one of those who fancy this new kid on the block but never got very far with the bundle I started for it.
Fortunately Tim Harper recently picked up on my initial efforts and has done a great job at not only making this bundle functional but also downright impressive :)
The much improved Git bundle can be found at Gitorious and discussion about it can be directed to its Google Group.
For those too lazy to click the link above, here are the short install instructions:
mkdir -p /Library/Application\ Support/TextMate/Bundles
cd !$
git clone git://gitorious.org/git-tmbundle/mainline.git Git.tmbundle
osascript -e 'tell app "TextMate" to reload bundles'
After having installed it you can press ⌃⌘T in TextMate and enter git
to find the “Administration → Update Git Bundle” action. Use this to update the bundle (it will automatically reload after having performed the update).