Being a professional member (plus) on proz.com makes me automatically a full member on TM town. I did register and started using a few of the TM available with SDL and MemoQ. Still too early to asses the quality of the TM content, but regarding the CAT usage, MemoQ is faster creating the translation memory. That being said, SDL is suprisingly more user-friendly when working with them. I am still undecided which one to use (I am currently working on pain-striking project using MemoQ due to its better OCR for pdf) as I have not a clear opinion, as I like them both. What I have to say is that I will not renew the Wordfast licence again.
I have also installed BaacS but I have not have time to try it. Just for this set of advantages, the proz.com professional member (plus) option is actually a great pro asset.