In order of importance (sorta):
1) Virtual Desktops - this might raise odd dock issues, but lordy I need it. and every other OS can do it.
2) USB Printer Sharing - Windows can do it quite easily...
3) Command + ~ to change between windows in finder (how it works in every other app).
4) Maill.app Mail templates - so I don't have to keep a text file with my most sent messages.
4.5) Mail.app speed - small mailboxes (1-3 Meg) take forever to scroll, genereate, etc. So sluggish.
5) A more configurable way of organizing access to applications - currently I have a folder with aliases to my most common apps (and an alias to my main applications folder) in the dock. It works but it's a but sloppy of a solution.
6) if the dock is on the right, change the side that the "folder arrows" are on. (put a folder (with other folders in it) in the dock and right-click on it, see how the subfolders arrows point to the wrong side?)
7) Better help files / faster startup for help - if I search the help for "umlaut" it should tell me how to type one. and if I misspell it, it should offer to search on the spell checked words (ala google).
8) add a "new text file" option to the finder right-click menu. When I need to take a quick note, it's a pain to go get textedit and open it. (this is also tied into #5)
9)More official themes, or a documented theme tool
Thats all for now. OS X is great (I switched from windows 4 months ago, and haven't looked back), but it still needs to be nicely polished. 10.2 probably won't answer my prayers, but I hope it gets most of them.
my system: 733 G4 / 640 MB