Thanks all! I will check out those sites as well as expert mode on the UA site (that is what you meant by .bomb right)?
I will say one thing for the UA site -- I often search for one-way routes and there's nothing more annoying than having to click a link or have the entire page reload just because you select one-way. UA got this right by just removing the return date, instantly upon selecting one-way. A lot of sites make you wait while your possibly slow connection has to reload a special page for the "unusual" request.
Another plus is that, when you tab from "origin", the cursor goes right to "destination" without tabbing through other junk. That's smart design that avoids the frustration factor. Other sites, please take note.
Hey, it's the little things.