Allison Scagliotti has come aboard Warehouse 13 in the role Claudia. She's been a great addition to the show.
Pete and Myka switch bodies on the Warehouse 13 episode "Merge With Caution." That should be interesting.

Warehouse 13 Season 2 Episode 8 Quotes

Myka (In Pete's body): Pete get your hand off my boob.
Pete (In Myka's body): How did you know that?

Myka: Don't damage the one thing Kelly is looking forward too.
Pete: Don't worry Little Pete is made of steel.