What panorama software to use?

This is the first panorama shot I'm uploading to my blog and actually the first one I created with my DSLR that I'd be at least half way happy with. I mean it's not great but it's not perfectly sucky either. But it could be better.

The software I used for this picture is the one that came with the camera - PhotoStitch. There was one with my old camera but I somehow lost it (the software, not the camera) and I think it was better. But now I don't even remember what it was called. Anyway, if you have some experience with panorama software and can recommend a good one, please do! I'll owe you and be forever grateful ;-)


PS: Am I boring you with London photos? I don't care :p