Just to maintain the status on the current situation....join the consultancy at last hour (b4 the ending of 3 mnths)...where they don't do any contracts (no boundries to leave anytime). And on the sametime, start hunting your own subject related job search on your own (don't let agency to know about your plan)...and, if you found one before the H1B processing time...that would be the bingo...OR... you can stick it up with a same agency if you don't find one ...otherwise move to some nice agency which pays better and market you soon. Thats all my way...but there might be different ways too....so first figure out the consequences....get more ideas  and know the depth and ONLY Jump.

Good Luck .