So how many bankers will go to jail?

None is a fairly safe prediction.

From Woody Guthrie's Pretty Boy Floyd -

Some will rob you with a six-gun
And some with a fountain pen
And as through your life you travel
Yes and through your life you roam
You will never see an outlaw
Drive a family from their home

This was written in the thirties during the depression which hopefully the politicians will not let us fall into again. I think it would be a good guess the guilty men will not be punished. The politician will let the guilt slide off them onto the bankers. Below are a few lines pulled off Google which shows why they make such easy targets.

HSBC - Stephen Green, who earns a basic salary of £1.25m a year, will not benefit from the bonus scheme. The bank's chief executive, Mike Geoghegan, could earn as much as 4m in bonuses, on top of his £1m-a-year salary, and up to £7m as part of the bank's long-term incentive plan, according to the proposals.

RBS - Sir Fred Goodwin, the chief executive of Royal Bank of Scotland, earned £4.1m last year, including a bonus for the bank's acquisition of ABN Amro, which the bank now admits it overpaid for.

HBOS - Andy Hornby, the boss of HBOS, earned £1.9m in 2007 but his bank was forced to sell itself to Lloyds TSB last month to avoid going bust.

Lloyds TSB - Lloyds own chief executive, Eric Daniels, was paid £2.4m last year.