Hey wmeyer, welcome to NeoSmart Technologies!
You have two options:
1) Install Vista then copy over your menu.lst to the neogrub configuration file from EasyBCD.
2) Install Vista, install GRUB to the bootsector (NOT the mbr), and then auto-configure a linux boot with EasyBCD.
Both are amazingly easy, though i think [1] might be a tad less complicated. Just email yourself a copy of grub.conf / menu.lst, and install Vista. We'll guide you through the rest!