Exactly what speakers do you have? and what is your budget? and what are your sources {cd player, TV, ect?}
with an efficient speaker (90db is efficient), you don't need much power at all,
the dayton dta100a is $69 and gives 50x2,
the dayton apa150 is $125 and gives 75x2
The topping tp60 is around $200 and gives 80x2
or you can go with a stereo receiver vs an integrated amp
$99 for 200w
Amazon.com: Sony STRDH130 2 Channel Stereo Receiver (Black): Electronics
lots available, insignia, sherwood, onkyo, pyle, ect all make cheap stereo receivers.. you can get kenwood a4060's for $40-$50 on ebay..
it all depends on your budget...