Morna said you liked silly anime and she borrowed DragonHalf to show you. I'm curious what other anime you've seen, or rather, which other ones you haven't seen that Morna might want to borrow for you.
Tenchi Muyo, El Hazard, and Martian Sucessor Nadesico are all fairly silly and i have the complete series in each case.
Ranma 1/2 is of course very silly, but my ashke has my first season box set of that. Excel Saga is EXTREMELY silly, although i've only got the first three or four DVDs so far.
Have a few other complete series, however most of them aren't very consistently silly, Cowboy Bebop, Rayearth 1 & 2, Escaflowne, Serial Experiments Lain. Hmmm, i believe Maze is at least somewhat silly, but i haven't watched all of it. My ashke has my Slayers DVDs, but i heard you have those already.
I have a lot of other movies and series that i've only got the first couple disks of, i can try and give you a more complete list if you want.