Must have Linux/Ubuntu apps?

[gam3r]

So far i have all the ones that came with Ubuntu and these:

Songbird
Beryl
Mplayer
Flash

What really essential/good applications am i missing? I don't really need Wine as i am dual booting with XP and i am relatively new to the linux scene so i'm just asking for a few suggestions.

Thanks!

 

[gam3r]

Thanks guys, will check some of them out.

Another question, in windows i use speedfan to control my CPU fan manually, but what can i use in linux? I have gkrellm but it only displays info(can't even get it to display temps?).

What can i use?

 

[gam3r]

I always tended to use powernowd to automatically control my cpu speed but I would think that (or equivalent) will already be running in Ubuntu. There might be a gnome desklet that will let you change the speed manually though?

I can't get gdesklets to work, when i open it, the application opens in a little box but the whole thing is blank and then i have to force it to exit.