A good consideration in the price range you have would be Jeff Rowland Intigraded Amp Pre-Amp. Good power, tube like sound. There is one for sale on this site now. Use the balance of your budget for Cardas Interconnect from you CD Player and Speaker cables. I think you will be very happy with this combination. In the future if you should decide to upgrade your speakers again, the electronics will be ready for most any speaker you may choose. One other point if you should decide you don't like the Jeff Rowland equipment, it is one of the safest investments you can make in audio.
Good listening,
Stealth 93es
Good listening,
Stealth 93es