Have you tried to configure ClearType on your Ubuntu instead of turning it off? There are quite a lot of options to modify, sure you can make it look better
On the other hand, Verdana, Tahoma or Segoe fonts that comes with Windows may do the trick
Referer2, have you checked this link ? http://wiki.ubuntu.com/Fonts
Asking about this on a specialized Ubuntu forum might be more helpful for you, since not a lot of people around here are running on a Linux system. But you never know though
I mean - it is more like font question. I'm not big fan of smoothing (even if configured optimally - I've seen Win7,new OSX,etc.) - WXP used tahoma (I think) - it was ok. I'm wondering if there is anything better than tahoma now.
I like profont, but it is suitable only for terminal (console) use.
Well, in that case you could try Bitmap fonts for a start ?
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