I know this may be completely obvious to a lot of people, but I have been putting my dock on the right side of the screen (MB SR). I keep magnification activated so when I roll over the icons I can see what's up. The dock gets really small, but it opens up the bottom of the screen entirely, and you don't have use the "hide dock"option (which is stupid in my opinion because as soon as you drag a screen all the way down, every time you go there, the dock pops up... dumb). It really frees up a good deal of space ad it helps a lot with the photo/video/web dev/publications stuff I work with. Give it a shot. As long as you have magnification on, it's a really good solution to the space issue. For me, that is. It's no solution t having an ext. mon., which is what you need to do a lot of heavy duty stuff. I am setting up the MBs that are going out to all my department heads tomorrow w/ the bar on the side so I don't hear as many complaints about the screen size... I hope 
I have also found Spaces on 10.5 to help a lot with the screen space as well. Try it out. Once you start using it, it becomes completely addictive, and you are able to do a lot more than you thought you could w/ the smaller screen. You can't make it bigger, but you can use some tricks to get the most space and utilize some "screen tricks" to keep a lot of heavy duty stuff open and organized w/ better screen space management.
Anyway, just my opinion. I do hope this helps some folks a bit.
I have also found Spaces on 10.5 to help a lot with the screen space as well. Try it out. Once you start using it, it becomes completely addictive, and you are able to do a lot more than you thought you could w/ the smaller screen. You can't make it bigger, but you can use some tricks to get the most space and utilize some "screen tricks" to keep a lot of heavy duty stuff open and organized w/ better screen space management.
Anyway, just my opinion. I do hope this helps some folks a bit.