I've got a 330mm neo grinta, one of my fav thing's about the car haha. It's on a mugen boss with a D1 snap off, it's the perfect reach for me with the SPG but I have quite long leg's so sit pretty far back.
3 by Rippu_Duggal, on Flickr
I'd recommend leather over the suede, it'll wear much better.
I've always liked the feel of the 350/360mm OEM airbag steering wheel. Aftermarket wise, a Nardi suede does it for me too.