I just picked up a lil' brother for my G20 also. I put Pearce Grip Extensions on my magazines too. It makes alot of difference (at least to me), to be able to get my pinky finger in on the grip. Love the G29 (I traded a Sig 232, .380 ACP straight up for the brand new Glock), and couldn't be happier with it. I've been shooting mine with some American Eagle FMJs so far, but have a fresh Underwood order on the way. I will agree it is a very accurate SD pistol.
I also have a CompTac Mtac on the way for it, and some Tru Glo TFO tritium/fiber optic night sights on order. I plan on making the G29 my EDC.