I switched yesterday from DNETC to Moo!, and today already I have a 25k celebration, after last night's 10k party.
Moo! performs admireably on AMD/Ati cards with double precision and OpenCL support like my HD 4770,
but my poor old HD 3850 -that only lacks the OpenCL support- is failing miserably: Still wanting another 15 hours after 7 hours running.