What amp for B&W 803 MATRIX S2 fronts for HT only?

Do you mean bi-amp or bi-wire? To bi-amp them you need an active crossover and two separate power amps. To bi-wire, you simply run two pairs of speaker wires, one pair to the high frequency drivers and one pair to the low frequency drivers. Both pairs come off the same set of amplifier outputs. The crossovers in the speakers determine what gets fed to the tweeters/mids and what gets fed to the bass drivers.

Parasound amps work well with B&Ws (I have used them on bothe 804s and 803ds) as they have a good high output current capability.

I would look for used versions of the HCA series, as these are good bang for the buck. The later Halo series are nice too, albiet more expensive.

I like using higher dedicated power amps for your 2 front speakers (ie, as you suggest, using your pre-outs into the new amp). The B&W guys also own (and use) Classe Audio with their stuff. To a degree, they probably do voice them togehter a bit...just makes commercial sense...and the high power reserves of Class would suit the B&Ws well which can take high power (and use it to good effect).

I ment the bi-amp. my elite allows for this. but also allows for seprates. I like the "older" amp and more bang for the buck ideas. That is more of what I am looking for. although my hearing is not all that good, I would still like quality. The "used" market is great for a buyer now and I thought it was time to change out my CDM1's for somthing else, although these speakers are a few years older than my CDM'S I have been told the MAtrix 803's series 2 would be a "VAST" improvement over what I have. Any thoughts or comments on the change in speakers?

I actually like the older Matrixes quite a bit. I think you will find the 803s provide you with a much bigger soundstages which you might well enjoy. The also will continue to use up whatever additional power you throw at them from your new amps. If it were me, i would definitely go for the 803s. good luck.