I don't. I have a pair of Kef Q300 and really like them, but they're too much sitting 3' from your ears. The same for the B&W you linked to. The Q100 may work (I've never heard them), but I would most certainly audition first. Nearfield listening is a different experience altogether, it's a must that you audition.
Your dad is probably not far off. Active studio monitors like Tannoy, Behringer, Adam Audio, Focal would be the first series I would audition. They are designed for this. Another that I auditioned and was impressed by were Swan M200 MKII. Behringer Truth series have speakers in your price range and are quite nice. If you want heavy hitters that go pretty low, Mackie or Adam Audio might be the best bet.
I went with passive speakers, receiver and amp only because I also wanted speakers in my living room, and wound up with the equipment in my office closet. My first pair were wonderful little Mordaunt Short Carnival 2, I now have Emp Tek E41-B on my desk.