Mini-review so far..
@ DataProspector (Database viewer/editor):
* Though I still think I prefer command-line style in many cases, it can be nice having a bit more of a graphical interface to MySQL sometimes (some tables are best viewed as forms imo) (and yes.. I do run phpMyAdmin occasionally, but I don't like doing it via my browser)
@ Arachnophilia:- Not updated for two years
- Ctrl-Tab doesn't go to the document to the right of the current but to the document opened after the current. That behaviour drives my absolutely crazy..
- Search function plain bad
@ Crimson Editor:- Can't rearrange tabs
- Search function a bit dodgy (can't choose to search from beginning of document, search window disappears when pressing Search)
- Latest release 15 months old (not really an issue as long as the syntax highlighting is good, and it is.. but anyways)
@ Weaverslave:+ Syntax highlighting works good
+ Great search function which displays all search results in a little box
+ Lots of other good functions
+ Freeware
- Unfortunately can't rearrange tabs..

Which is pretty important to me when having lots of documents open and suddenly realizing I have to change between two of them many times. But maybe I can live without it, or request that it be implemented.
- Ctrl-Tab doesn't go to the document to the right of the current but to the document opened after the current. That behaviour drives my absolutely crazy..
@ EditPad which I used lots of years ago.. tried the new version now:
+ Good syntax highlighting (for many languages and regularly updated it seems)
+ Can rearrange tabs
+ Ctrl-Tab goes to the document to the right of the current one, which is the way I want it (can't really see how anyone would like it any other way)
+ Also a really good search function
+ Lots of other good functions
- Unfortunately not freeware, and way too expensive (€39.95)
@ SciTE:+ Syntax highlighting works fine
+ Ctrl-Tab goes to the document to the right of the current one
+ Very nice feature: Ctrl-F7 compiles, which means it parses PHP files with 'PHP -l <file>'. No need to go and reload a web page to check for syntax errors! Maybe this command could be added to other editors..
+
Very small footprint compared to other editors - 415 KB executable (no need to install) with everything needed baked into it. If I had a USB stick, I'd put this file on it.
- Can't rearrange tabs
- Search function very plain and standard
Thanks for the tips guys! Keep 'em coming..

I'll also try
UltraEdit-32 ($39.95 though..), and
SciTE.
<edit>Tried SciTe, see above.</edit>