Bang for the buck I would and have put my money on the STI Trojan 9mm. many current production 1911 chambered in that cartridge. RIA, S&W, Kimber, Dan Wesson, Les Baer, Wilson Combat, Nighthawk Custom, STI, Para Ordnance to name a few. I ordered an STI Trojan from their Custom shop, should be here in mid September (ordered it in April).
What I would look for in a 9mm 1911A1 would be a ramped barrel vs the ramped frame, it is said to improve feeding rounds and it works well with the Wilson Combat 10 round magazines.