No support for OpenGL

OpenGL support is provided by the graphics card drivers, not by Windows. What Vista has is sort of an OpenGL emulator via DirectX 10, which is far inferior to direct hardware OpenGL support. But Microsoft doesn't write the hardware drivers, the hardware vendors do. Look to nVidia and ATI for Vista OpenGL support.

No Type 1 support out of the box.

What a surprise. Microsoft is not allowed to. Type 1 is owned by Adobe AFAIK. So either they'd have to pay Adobe a LOT of money to incorporate Type 1 support directly (who's greedy here?) or they just don't incorporate it, and the users who want Type 1 fonts can buy them, plus the type manager, from Adobe.

I'm not sure if Poser 7 is distributed as a universal binary. If it is, it should be possible to get it to run under Linux. After all, Mac OSX is based on BSD, which isn't all that different from Linux. 

WINE isn't bad at all, but doesn't incorporate all Windows functionality. And from what I've heard the graphics performance is lacking - not surprising, considering the extra layer of software everything has to go through. A multiboot system probably works better.
Unless you want to use 64 bit Windows programs. IF there is a 64 bit WINE, you can run 64 bit Windows apps, without having to shell out for Vista or XP Pro 64. IF.

The pen is mightier than the sword. But if you literally want to have some impact, use a typewriter

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