It will be up to your IP as to what he will let you keep aside. Unfortunately, if we are talking about a couple of grand in a savings account, I think you will be asked to pay that to creditors instead.
My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014 http://foggy.blogs.iva.co.uk