I am in the same boat as you. Only BW and WordPerfect are indispensable for me and I tried both Wine and the latest Crossover. I was able to get both programs working in their previous versions, but could not get them fully functional now.
I would prefer not to use Windoze at all, but for now Windoze under Virtualbox is the only functional solution. I love Virtualbox and use it to test and try new versions of many distros, so having one VM for Vista is not too big a deal, except I have to boot into it. However, Virtualbox's seamless mode makes it seem like your running under Linux.
Oh well, maybe we will get a linux version some day!