Hi there, I recently got a career development loan to help fund my modular CPL/IR course and am aware that a few of my fellow students have also used them to help fund their course. The Coop Bank and Barclays both offer them but in my experience I found that the Coop Bank's application process was much more straight forward than the Barclay's process. (For example with my Coop application I only needed to send off the application and no supporting documents but with Barclays I would have also had to send a utility bill, certified bank statements etc).
You need to make sure that the school you choose is registered with the Young People's Learning agency in order to be eligable to receive the loan.
Hope this helps.