Save the cash, get it the cheapest way you can. If you can find an aero club, that's your best option. It's the same ticket whether it's a Beech or a Boeing. The 737 type means nothing unless you really really want to fly for SWA, who isn't hiring again until 2015.
If you've been driving a desk, you may need that extra cash to get above the 100 hours in 12 months mark.