A few remarks...
- CCleaner is good (in fact, VERY good) at removing crap. But it's not completely crapware-free: it installs the Yahoo toolbar by default. However, you can un-check that option at install, so don't go clicking 'next-next-next' too fast. Then, true, it's damn good.
- 7-zip can unpack anything that is zipped; if a ZIP file fails, then it wasn't a ZIP file... Or it was corrupted.
- The GIMP accepts what you say, and more: current stable version can deal with CMYK data, colour profiles, and can even delegate some work to the graphics card. And, yes, it provides some HDR effects.
- Scribus and Ghostscript are separated for one very simple reason: Ghostscript being THE reference implementation of Postscript in the Free Software world, it is very often updated - and it is very nice to be able to update said reference without having to update the whole stack. This may be a drawback on first install (you need to install two packages), it's a boon on prolonged use: no need to download the whole shebang every time Ghostscript is updated...
- I wonder about Trillian: why not Pidgin? It does the same thing Trillian does (for the free version), on more networks, and sound/video chat are being added little by little.