I believe both airlines are going through expansion.
For information on salary etc see
www.ppjn.com
I know someone at GB and he loves it. Good rostering and well looked after by the company.
There is ongoing recruitment at GB. Last I heard they were looking for 3000hrs + for fast track to command but may recruit people with less during the autumn.
On the BMed website I believe they were asking for 1500 hrs as a minimum but worth taking a look.