Looking for an used, inexpensive pre amp


Currently using a cheap but fairly nice sounding Dayton T120 D class amp.  Not enough inputs.  I would like to find a pre amp to use with this amp and perhaps at some point, if I can find the money, I can buy a power amplifier to replace the Dayton.

Figure my budget to be under $200 right now.  Looks like plenty of older inexpensive Solid State pre amps are available on Ebay.  

Any ideas what I should look for when buying a preamp?  I've only used Integrated amplifiers up to this point.  
will62
I did not like the SYS 2-input passive and returned it


Did you make sure first it was an impedance match with your source and poweramp?
What is the output impedance of your source and input impedance of your poweramp.
As those that did, love it, and there's always the $349 Saga which has active tube output if the impedance's aren't right.
 
Cheers George
if you only need more sources a switch box maybe all you need.  second the Saga from Shiit. lastly try some vintage audio shops and regular audio shops that have used items.
I have an Adcom GTP-400 that I bought new many moons ago and barely used and its been sitting in a closet next to my other "vintage" gear. Decent unit. Ping me if you want it.