Used stereo amp for $300.00 to drive Triangles?


Hi folk's,

Could anybody recommend some used amps for around $300.00.
I will be using a Rotel RSX 1055 as a pre amp, with Triangle Celius speakers. This system is for both serious stereo listening as well as home theater. I'm looking for some warmth. Some amp's I am considering are as follows:

Rotel RB981
Parasound HCA-1000
B&K ST-140
Belles 150

This purchase will have to last me for the forseeable future due to my three older teenagers! As such, my choices are pretty limited so I have to make the right choice now. Their are few to none possibilities in my area so I am forced to make a purchase sound unheard.

Any suggestions would be greatly appreciated!

Thank You!

Danny
betelgeus
If you care to take the plunge into tubes, I would recommend the Antique Sound Labs MGsi15 DT. Later editions have subwoofer outs and would provide 15 very sweet watts (5 in triode) to drive the efficient Triangles. I am always impressed with this little amp. You can often find them here for about $350.00--A screaming value, I believe.
Thank's for the suggestions! I just won a B&K ST140 on Ebay. I think I'm suffering from buyers remorse now that I see the other offerings in my price range.

Oh well, I might just love it. I shall soon see, or hear!

Thank's again!

Danny