As you said, most of those packages can be grabbed on the net in binary format, (linuxpackages.net, sun website, or the eclipse project site).
A couple of packagers (rbistolfi and me) decided some time ago to provide packages in blocks, aimed to cover some needs of different users:
For example, we released some apps related to command line interface (terminals, im clients and so).
Then we thought of vl-net which is what we're working on (with mutencillo and toothandnail collaboration), which will have some traffic sniffing tools, and wifi auditory as well as ftp clients, ntp, or samba related tools.
We have vl-dev in mind and vl-fun, but you know time is short, and manpower little.
Here's an outline of what we thought packaging. Feel free to post suggestions.
nvcc (cc for programming gpu's)
vim with lastest patchset
scribes (lots of gnome deps, so maybe undoable)
ddd. gdb frontend
ctags (already there)
someone packaged many libraries for 5.8. Let's hope he supplied slackBuilds too ;)
versioning control: (most of them are already in slackware repos. is it worth to repackage them?)
Feel free to join the packagers group if you think you could help and have time to spend on this
. PM rbistolfi for more info (I'll be offline some days)