We purchased a Moen undermount stainless model Lancelot 22355

I will also have a 24" base, and I was looking at this one from Ticor. Galaxy also carries this one, which has more accessories but I prefer the off-center drain on the first model, which is also slightly larger.

Also, if you don't have to have an undermount, the ikea single domjso is a really beautiful sink for a 24" cabinet.

Oops, I see that while it didn't show up just browsing their square sinks, galaxy still offers the first one with the grid, too:

Here is a link that might be useful: sink with grid

Ikea also offers what I believe is nearly a zero radius sink. Look on the Ikea website for more info, it comes in 2 sizes and is designed for a 24" cabinet.

HTH, Petra

Here is a link that might be useful: Ikea Bredskar

How about a zero radius D-shaped sink? In about two weeks this one by Nantucket will be going into our new kitchen We were limited to a 24" sink base and our designer recommended this on:
http://www.nantucketsinksusa.com/DetailView.aspx?product=32

The front and side walls are nearly zero radius. It's 21" inside and 18.5" at the deepest part of the D. 9.75" deep. 16 gauge. We got it from Overstock at $150 less than everywhere else. Its a beautiful sink and will get you the maximum sink area that you can from a 24' base.