Having hit almost every site in the world related to S@H, I've seen 2.70
as the client of choice on most every team.
It offers all the data crunching + of any older client, and is a legit S@H client.
The only downside to the S@H project might be the added server load due to the
client being faster per WU.
I went from 12 WU's per day to 16 with 3 PIII 806/124's.