Is there a link to the latest Mac wallet?

Latest Mac wallet has been compiled and is at http://www.pakcoin.info/downloads/Pakcoin-Qt.dmg
pakcoin.info/wallets page also has its link.

Thanks, that seems to work, but it looks like there hasn't been a block for more than 24 hours? Is that right?

Well the latest block is 1 hour ago , check https://chainz.cryptoid.info/pak/

Whats the best pool to use for Pakcoin?

Pakcoin is being mined at pool.pakcoin.org , prohashing.com, hashnova.org , www.mining-dutch.nl
You can mine as you like