Versatile Commuter

I've been riding an old suzuki intruder 800, and while I like the bike I feel like it's just a tinny bit too slow to go on highways for long periods of time, not to mention that it's really loud cuz the previous owner cut out the baffles. I've been leaning towards a v-strom 650, but I don't know anyone else who rides bikes and I wanted to see what other people thought.

My bike is my commuter (I don't own a car, I like how cheap it is comparatively and I don't mind weather at all), so I want something really reliable, can carry some weight, and can easily crush some highway miles (and preferably a little quiet). I like the sporty look of sport touring and adventure bikes (plus i like camping and hiking, so while i don't need a duel sport it'd be nice if it could go a little off road, tho that's not a necessity). And while reliability and function are very important, the cheapest option always wins.

What bikes fit that best?