Cash burning a hole What to upgrade?


I have some cash burning a hole in my pocket and want some thoughts on what might be a good use of $1-2K. I have a slightly weird setup right now.

Speakers: Acoustat Model II's and REL T2 subwoofer
Amp: Acurus DIA-100
CD player: Denon cd/dvd player
Interconnects: monster RCA and Mapleshade Clearview speaker cables

Any thoughts?
cmwood