The SIVA legislation to which you refer is expected to be in place by April 2008.
I too, for the first time in 10 years, am sadly seeing all of my cases with Northern Rock being rejected at the moment, and am trying to establish their actual criteria, so as to be able to advise prospective clients appropriately.
I personally feel that they typically lend high sums over a relatively long period of time - ie over 5 years - and are concerned that customers are then asking for support towards a much shorter five year IVA. I can understand that point, but bankrupty will always offer a lower return.
A DMP may be your only option if you wish to avoid bankruptcy proceedings.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
For further details contact me at
http://www.melaniegiles.com and view my IVA blog at:
http://melaniegiles.blogs.iva.co.uk