i have an AMD x2 be-2350 2.1Ghz 65nm brisbane 45w(basically a locked, lowered multiplier, undervolted x2 5000+ black edition chip). does 3.05Ghz @ 1.39v around 80w never really tried to go higher due to the board i was using but i'm sure it would. but ran at that clock running boinc for almost 2 years and it never complained nor BSOD'd. also have an athlon 64 x2 6400+(non Black edition) 3.2Ghz 90nm windsor 125w doesnt overclock worth crap. both have been sitting unused for about 6 months now.
just let me know if either seem interesting to you.
I don't know about reliable, but I have an Apivia 500w PS that has never been powered on (it came with a case). I will give it to a folder for actual shipping costs (probably around $10.).