Best preamp for atma sphere m60 under $3000 used?

Darn, I was hoping the cary would be highly recommended. The cary is the least expensive of the bunch.
Just out of curiousity can anyone predict what the sim will sound like when paired with the m60's?
As of now it is the best pre I have ever had, but it is the only high end one I have owned. Prior to this I had an onkyo p304 and a nakamichi.
Thanks for the help :~)

Reason I ask, is one option is to get an mp3 for the time being, but I'ld rather forego the buying and selling of a temporary preamp while waiting for the mp1 to show up at my price point and when the funds are there.
Also thank you all for the advice!

By a used MP-3, it will sell for what you paid for it and then get the MP-1 later on if you don't think the MP-3 does it for you. As a linestage, the MP-3 is outstanding, I chose it after and month or two of A/Bing the Joule LA150 MKII, and it was a tough choice as the are both outstanding; and I came to the Joule after hacing the CAT and Lamm preamps, in other words the MP-3 is darn good and an outstand pairing with the M-60s. As to its phono-stage versus the MP-1, that I know nothing abouth, but I expect that is where you would hear a worthwhile upgrade. I would also recommend the Dodd Battery pre, but alas it does not have a phono stage. What I feel fairly confident suggesting is that a quality tube pre amp is likely to be an upgrade from the SIM, so the question is how long you want to wait. Thanks to Agon, you can try this stuff with little risk you'll suffer financially. Theory is interesting, but not worth a darn compared to listining with you ears, with your music, in your room.

Well the m60's arrived safely(thank the life force) and I can't believe how good tubes sound my oh my, f#$% incredible, why didn't I go with tubes before??????????
Now I know I will be going with atma sphere preamp only!