Vista - OSX boots first on OSX/Vista dual-boot setup

Hello.

I recently installed OSX on a different partition of the same HDD. Now OSX boots first unless I hit any key in the 5-second window it gives me, which leads to the traditional list of different operating systems installed.

How do I get it to boot directly into Vista instead of OSX? Or how do I get to the OS options screen at bootup.

I plan on installing Windows 7, and would like to figure this out before complicating things further.


My specs:
Motherboard: Asus Rampage Formula
CPU: Q6600 2.4GHz
RAM: 8GB DDR2
GPU: 4870 X2
HDD: 1TB Seagate

Thanks.