I too was looking at buying a Jeep Wrangler, before I got my Jeep Cherokee and as already stated they have their pluses and minus's.
If I was too get one I would get one with the Hard Top. For a few reasons - It will be a little warmer in the winter with a hard top then a softtop, and in the summer most people dont run with a top on, though I would recommend getting a bikini top for it. If you dont know what that is its a half soft top if you will...look at the picture that NCNitro posted, that would be considered a bikini top. Those are nice in the summer to keep the sun from being directly on top of you, and give you a lil protection if it starts to rain.
As pointed out and I recommend this to ANY one with ANY type of "soft top" do NOT lock your doors. I know of people that put nice sound systems in their jeeps and lock their doors, only to have to replace the radio AND the top. Those tops are anything but cheap. Save yourself a few hundred dollars and dont lock the doors. This even goes for cars with "soft tops" I've seen a lot of roofs slashed because someone wanted their radio more then the owner did. Save your money!
As Eddy pointed out - Jeeps are not the "safest" car on the road by any means. Turn just right and you'll be asking someone to help you flip the jeep back on its wheels. Drive like you have some sense and they are a blast. Are they loud? well I guess that all depends on what you do to them...my friend put a 302 with glass packs and yes...it sounded sweet as hell, but not eveyone puts a 302 in their's. Stick to the straight 6 (4.0L) and you'll have a blast and they're not nearly as loud, unless you put some sort of tuned exhaust on it.
I dont know if i totally agree with eddy about how "un-comfortable" they are, because as I already stated. I own a jeep cherokee, my cherokee has bucket seats in the front - the seats in there are also ones used in Jeep wranglers. I have been on 2-3hr drives and didnt think it was to bad, but keep in mind Eddy drives around in a Mercedes and i'm just a poor white boy.
One last cool thing - as NCNitro also pointed out...you can customize a jeep to no end, there are endless amount of companies that make aftermarket stuff for Jeeps, more so for the Wranglers then the cherokee's. Just look inside a book store, there are magazines after magazines that are just about jeeps.
And yes, jeeps are a BLAST - drive like you have some sense and you'll be ok, or have someone drive for you so you can sit in the back seat and take pictures of HOT girls driving behind you

....Eddy I still have that picture!!!
-WoodiE