I carry a G17 or a G30SF.... I'm really impressed with the 30, recoil is managable even with +P loads, hold 10 +1, it's not really uncomfortable IWB with propper holster, .45ACP is just as easy to find as 9mm(or easier my walmart doesn't carry 9mm), You have the choice on G36(8rds), G30, G30SF(slightly smaller frame) for hand fitting. Either way if you decide on the G26 you won't be disappointed.
Also there is a conversion barrel for the G30 making it 10mm.