I have used the services of Mike at Pretestedcpus before and found him reliable and useful. He replied to my emails almost the same day. When the processor I bought from him for $180 it didnt o/c as he advertised, I sent it back and he gave me a refund, albeit less $80 as it was outside his 14 day period for exchanges, and the larger loss reflected his restocking fee. Note he didnt have to give me anything for it but he did. I then went to newegg and just bought the same processor for $120 and it overclocked more than what Prestested Cpus advertised and at a lower voltage.
Points of note:
1) Mike is undoubtedly a nice guy.
2) You might be better off going to newegg and just trying your luck.
3) Id probably NEVER get a pretested cpu again, Ive used Step-thermodynamics and OCZ before and lost money on both.
4) You might be better off buying a newegg processor and putting the shipping address to Mike's cos for just another $10 he will unlock it for you. If I were you, thats what Id do.
Best of Luck to you!