Well here's what I came up with. This is basically my idea of the perfect download window as I have always wanted. Keep in mind I chopped up a bunch of windows to make this so ignore the mis matched title bar and inconsistant stats.
I think that looks damn cool personally, although I may be biased since I designed it. I don't like the status light part so I'll change it later to something similar to Buzzard's idea which works better. I tried to keep it compact because I really hate those BT clients that take up the whole damn screen if you want to see all the info and it's one of the reasons I use this client in the first place. I'm pretty fond of the shape of the default BT window and I think this would be a nice compromise between big and small for a client that's "all in one window".
If it was a perfect world I would add a built in RSS feed reader at the bottom and a drop down box to choose which feed to use (TVT, Suprnova, etc). Add an option to auto download to the default folder when torrent name contains specific words, and option to play a sound file on completion, and you've got the coolest bt client I can possibly imagine.
Anyway, I'd be more than happy to make any changes you'd like to see Shadow. Let me know what you think. (sorry that the bottom of the window is just kind of chopped off, but you get the idea)
I may make some revisions and post an updated one later.