With your pretty modest specs pretty much anything with VIA KT266A (your Gigabyte had KT266A) or newer would probably do the job. There are indeed a huge number of boards made by different manufacturers with different chipsets so you probably get quite a few suggestions. There are lot's of boards that are good and fill your requirements more than well.
I'm currently building a sA system on EpoX 8rga+, but there are many good options. I had huge bunch of sA boards back in the day. Couple of them sucked badly, but these I was very happy with:
MSI K7t266 Pro2 (KT266A. Very stable board, but not a huge overclocker, but that was common with most KT266A boards)
EpoX 8k5a2 (KT333. Good enthusiast board like EpoX boards were in general)
EpoX 8rda3+ (nForce2. It's EpoX so can't complain)
Abit NF7-S V2.0 (nForce2. Probably the best overall sA board, at least my favourite back in the day. It was feature rich, stable and excellent overclocker)
One might argue that for your specs, some stable, good quality KT266A or KT333 board is completely enough. There are just so many of them. Read some old reviews from Anandtech and similar sites, they have good roundups of different boards.