I’ve been a Wireshark devotee for probably a decade. I’m sure I’ll continue to be a huge fan for everyday use. I had heard stories about Microsoft’s Network Monitor being awesome a few years ago at GDC, but hadn’t actually tried it out until now. I have to say, for developing custom protocol parsers (for debugging the mutliplayer game you’re working on, for example), it wins hands down. I might never write another Wireshark dissector again.
Googling around, I found a lot of people had the same problem with Git on Windows that I did: large files (where “large” means above 350MB or so) cause “out of memory” errors. A quick look into the file causing the error, Git.pm (ugh, perl), shows the reason right away: they’re doing nice, small 1KB reads of the file blob in a loop… but collecting the whole thing in memory before writing it all out.
I’ve been a user of the Bazaar distributed VCS from Canonical (the company behind Ubuntu Linux) for a while now, at least for my personal projects. When I first chose it, I had already spent some time playing with Darcs for a few small projects. Darcs got its start in 2001 with roots in the [GNU Arch](http://www.gnu.org/software /gnu-arch/) project. (Bazaar’s predecessor - also named Bazaar - also has its roots in Arch.