Magnepan LRS- what amp should i consider? (sub $2,000)

Howdy!   Help !
I'm not very current on high end equipment these days- I bought my Vandersteen 2CE's about 20 years ago, and haven't been tracking the market since.   

But, since I'm going to "test drive" a pair Magnepan's LRS soon - I need to lasso a more powerful and detailed amp (my Adcom 50 wpc thang is not gonna cut it).  I could go new or used. I listen to a lot of Jazz and G  Dead, and often play things loud.  The room is 11 x 21, and has some useful sound absorbing panels behind the listening "station".

I'd really appreciate any thoughts on a suitable power amp or integrated amp - at a somewhat reasonable price. And- given the rest of my qwipment (noted below) should I invest in some cables & interconnects too?

My (fairly humble, but exciting) system:
Harmon Kardon T60 TT w/a Audio Technica VM 540 ML stylus-  running thru a Nakamichi 610 preamp.  I'm streaming my >8,000 song iTunes library from an Apple TV box into a Cambridge Audio DAC 100. Also have a HSU sub hooked in too. I don't own any fancy cables or interconnects.

Thanks!