Vandersteen 1c, and an integrated

The 60 Watt Rotel integrated is a classic starter combo with the 1C within your price range. But your other choices seem to be good ones as well; I think you'll be ok with any of the one's you list, but might want to add Arcam for consideration.

Thanks, I'll look at the Arcams.

There are two pairs of 1Cs in my home. One is part of a modest home theater system in the bedroom and is powered by an old 60wpc AV receiver. The other is part of my son's system and is connected to a 35wpc NAD integrated. The receiver has more wallop but the integrated sounds sweeter, particularly with female vocals (a Vandersteen strength in my opinion). However, I have also connected a pair to a 100wpc tube amp in my main system and they sound stellar there. I would, therefore, recommend that you find an inexpensive tubed integrated because these speakers LOVE tubes. I've heard that Cayin and Primaluna make products that should work well in this application.
Good luck!

I'm a definitely in the tube camp, but I would discuss with Richard before going that route with the 1Cs. Most VS need a lot of tube power with current (not cheap) to shine in the bass region. I think the 1Cs have some nasty impedance dips in the bass region that could be a challenge to a tube amp; of course the midrange and above would sound better than SS IMHO, but I do think the speaker needs some careful matching to get the bass right. I have not tried the Cayin and Primaluna, so I'm not saying they wouldn't work.