NS10's DO sound harsh as hell, and are probably not so good to have as your only speakers to work on I think they are a little more special than suggested in this thread.
They are not considered SIMPLY a parrallel to home hifi speakers, at least not here in the uk, they do have a steep bass roll off but they also have a much lower latency in the bass compared to monitors costing many many times more. So they are not bassy but they are very acurate down there! There mid presence also serves to accentuate a potentially critical area of the mix, ie right there in the 2k area. It doesn't simply invite you to turn down that area, it forces you to mix VERY carefully there and if you get that area of a mix nailed then you are well on your way to a good mix.
For that reason (the midrange peak) they are also VERY good for balancing on, everything has a tendancy to overlap nastilly (lit.

)very quickly and its easy (once you get used to them) to put things in place balance wise.
They are certainly a 3rd or 4th choice for bringing up good sounds, stereo field stuff and long listening sessions etc. But they are a valuable speaker to have around still today and to dismiss them is a mistake! I have worked with some top, young (as in not the old hacks stuck in the 80's

) engineers and producers producing some stunning, very modern sounding recordings. They all have there favourite posh near or mid fields, but almost without fail half of every session is spent on the ns10s! were talking the sort of people who go into the tinyest detail about recordings, the sort of people who will halt a session to order a different wordclock for the studio or take mics apart to find exactly where the capsule is so they can measure capsule to capsule perfectly! (silly, I know

, its happened... ) but yet they are fine with the humble ns10s on top of the desk!
To the OP I second all the advice about looking at your room very critically as well. Even near fields will interact with the room a lot and you can easily make super pricey monitors sound awful with bad acoustics. I used to do some fly-engineer work at a little community studio, there monitors cost £1500 EACH, but the room was completely untreated, it was almost impossible to work in there!
I would be very interested in some sort of 'everymans' laptop speaker monitors though, sounds like a good idea!