Hi are there any high quality screen savers for linux that look as sophisticated as the ones you see on windows like the fancy tropical aquarium ones?

Also I am looking for ATI Radeon video card testing software, I know ATI Tool is available for windows, did any get developed for linux? 've done a quick search but I dont seem to see any.

I managed to get a new video card in the end, I bought a asus radeon hd 4350 hdmi pci express card. It seems to be plug and play and my computer swapped over without any messing around with more drivers! I have been running complex websites and playing a hi def video for 14 minutes with no issues! :-)

Thanks in advance.