Well, teeny tiny downs: ever wondered where the gcc manpage might be? It's in a package called gcc-docs, of course, but to install it, you need to enable the non-free repository. Hmm. And is there really just gcc-4.1 in stable? That's two years old!
Big, fat ups: the upgrade to lenny is so simple, fast and overall just pleasant that I'd wish I could do it every day. At least. And in contrast to Ubuntu, you can do all at the command-line...
Just in case you don't know, here's how:
First of all, visit your /etc/apt/sources.list, and change any occurence of etch to lenny. Save. Then, issue:
wajig update wajig upgrade wajig dist-upgrade
You have to update the kernel and the kernel sources separately by explicitely issuing the respective commands:
wajig install linux-image-2.6.26-1 wajig install linux-headers-2.6.26-1 etc.