I've been looking, too, but I need either a woman-specific pack or one that will adjust down to a 15" torso length. Nearly all the makers are, at this point, going to unisex packs, all of which are too big for me and too small for men with long torsos! I also don't want a day pack that weighs more than the pack I take for a 10-day backpack, which is 28 ounces (Six Moon Designs Comet, since discontinued).
I found at the REI Outlet a woman's REI Stoke 19 for a summer backpack on closeout (they now make this pack only in a single unisex size). It fits me perfectly and is very comfortable. However, this one barely holds the "Ten" Essentials, lunch, my small point and shoot camera and a couple of small water bottles. It sure wouldn't work with a large camera added! REI now makes this pack (and a 30L equivalent) only in a single unisex size.
For cold weather dayhiking I plan to look at the Osprey Talon 33 which at least has the advantage of an adjustable harness and comes in two sizes. I don't know if it will work; my previous try-ons with Osprey packs weren't too successful. If it works, it appears that I can whack off several ounces of gewgaws and still have a functional pack.
If you can wear the single unisex pack size, there are lots of daypacks around with hip belts. If you don't mind a heavier pack (say 2-3 lbs.), there are even more. Osprey, Deuter, Mountain Hardware, REI. They all have hip belts with hip belt pockets to carry your little stuff. If you have a long torso, though, you'll be limited to those packs that come in both Medium and Large sizes; the "one size fits all" will probably be too small.