Hi Lukas, welcome to the Cameralabs forums!
The L1 sure is a pretty unique camera, but in our tests it didn't perform as well as, say, the Nikon D80 or Canon 400D / XTi at high sensitivities under low light. We have some samples at different sensitivities here:
http://www.cameralabs.com/reviews/Panas ... age5.shtml
If you want a DSLR which excels in low light, I'd say there's better models available at the moment. If you're into the idea of live view, then I'd wait and see how the forthcoming Olympus E-410 and E-510 compare.
If you're after a DSLR which really is different from the crowd though, the L1 is still an interesting choice - and its analogue look and feel really works well. It is a camera you'd really need to handle in person though, as people tend to either love or hate it!