One of the bike rags just did a comparo on the KLR, KTM 690 and Husvarna 650. ( Cycle World?). Hands down, I would take the Husky.
I have been riding the Husky recently. At the Journal we get to ride a bunch of different bikes so it's fun to compare.
I really wanted to like the Husky, but I didn't like the power delivery (not as smooth as I expected) and I didn't like the riding position that the stock stepped-seat forced me into. It made me sit far forward, which is good when you want to attack a turn in the dirt, but sometimes you just want to sit back and relax on the pavement.
The big thumpers (XR, KLR, etc) are good all purpose bikes but you will feel the fatigue with a lot of highway riding.
Ask around from friends and dealers, and try to test ride as many types and styles of bikes as you can so you can figure out what you like before you buy.
My regular rides are the XR650L as a DS, and a YZF250F for dedicated trail riding. Both are fun, neither is a great street bike.
I am thinking of getting a Triumph Scrambler as well. Not as a trail bike, because it isn't one, but as something that I would be happy with on the street, and that I could still take up a fire-road with a tent on occasion. A decent used one is about 5 or 6 grand. It would also be a good bike to keep up with a bunch of Harleys.
I've had a bunch of Triumph's so I am not worried about maintenance and parts, but it's definitely quirkier than a Japanese bike.
Anyways, lots of options. The worst thing that will happen is you buy a bike, don't really like it, sell it, buy another one, and chalk it up as a learning experience.
I agree to buy used. You WILL drop your bike.