leaving then returning to canada whilst PR in progress but have a work permit.

[Darran]

Hey,
I have recently arrived in the UK for a visit with friends and family before xmas and due to return to Canada in 2 weeks. My concern is going back through Canadian Immigration.
My PR has been initially approved and I have received my working permit valid until Sept 2011.
I called CIC who told me that I have status in Canada so I should have no problems getting back, but others have made me concerned stating it is never advised to leave Canada whilst PR is going through.
Anyone been through this and should I be worried or should I be fine??
Thank you guys.