My Kimber 1911 is my favorite too, but ammo costs are starting to bite my training regimen.
Beretta 92s are solid, tried and true. I have a 90-two myself, which is a little bit of an upgrade. It's got better grips, sights, lines, tac rail, and it holds 17+1. There's not as much out there in the way of mags or replacement grips though, but it'll use the same holsters.
The best thing is to find something that fits your hand well. It's like a shoe. It doesn't matter what it looks like or what the box says it'll do, if it doesn't fit you'll be sorry. Go to a gunshop and try a few on for size. If you have a place to rent pistols and try them don't pass it up.
Springfield XDs are excellent weapons. They're inexpensive, high quality, accurate and they have a really good company behind them. You can't go wrong with Springfield Armory (I've actually been there).
Glocks are very popular, but they're not my thing. I don't like how they fit in my hand. If they're comfortable for you this might be a good selection.
Sig Sauer are excellent pistols. I have three. I actually have a 226 in .40 and a 220 in .45 that I'm selling right now, NIB, 10th Mountain special edition. They're simple, reliable and accurate. Very hard to beat Sig.
There are a lot of really great 1911's out there. 1911's are just a different animal from other pistols and people tend to love them, with few exceptions flying to the opposite opinion. They do take some practice though. In the long run, if you want a target pistol that'll be good for stopping zombies, think about getting a nice .45 with a .22 conversion kit. These save on ammo cost as well as providing important training in fundamentals. I personally love my Kimber. It's my favorite to fire and it's my carry. It' actually conceals better than my Sig 229. There will be a 100th B-day party for the 1911 at my house within the next year for anyone who wants to come.
A Beretta would be an first pistol, but there are also some other good candidates. Try as many as you can, on the range if possible. Over time, you'll find your favorites. Gunbroker is your friend.
Send us pics when you get something!