Not yet - I'm researching the same topic. I recently acquired a P229R SCT. It is a standard 9mm P229R, but it comes with four high-cap 17-round magazines that extend below the grip. I really like my other P229, an Elite model in .40 S&W, but it's hard to beat 17 + 1 firepower in a firearm the size of a p229. It fits perfectly in a Blackhawk CQC Serpa designed for a P226R, but of course the holster is longer than it needs to be. I have a Galco "Summer Comfort" IWB for my P239 which I like, and that may be the way I'll go. I'm left-handed, so I'm pretty much forced to order blind over the internet. I'm also looking at Comp-Tac - they have several interesting IWB models with a lot of options. Of course, when you can't try them out, a lot of options means you have to make several configuration decisions based on a leap of faith.
Please keep posting your search progress, and I'll do the same.