my vote goes for holding onto your money for a little longer and get a piece of gear that you wont outgrow in five years. I think you should get a pre that you'll keep with you for the long haul, an investment. so maybe you wont have a pre for another 6 months but you should definitely check out the Langevin DVC. It's 2 channels, with a great limiter and eq for around $1500. Its a pro piece of gear at an unbelieveably good price. Its made by manley and worth every penny. On a lighter note, check into the Grace 101 for 600 dollars, its gotten pretty good reviews...
Stay away from the penta stuff, its not that great. if your gonna get a focusrite at least wait till you can invest in the red series.
you'll be happier in the long run and next year you wont be on here asking about which pre you should get next.