Here's a tip I discovered; I was holding off to see if it would show up in the queue in the first few days, but with over 400 new submissions, it's not there yet ... so I thought I'd go ahead and toss it out for those who dislike the alternating-row stripes in 10.5 (I actually like them, but I know that feeling isn't universal).
If you'd prefer a plain white background for list view mode, as in 10.4, open Terminal and enter these two commands (without the $):