maximizer just makes your screens look neat and pretty. So if this is not as important to you you can just open them up normaly and then adjust their size and set them in place. this is what i do. i have 2 26" and on one i use my main maxed out on the screen and on the second i have my 4 followers quartered out. I like it better this way cause i can click on the top of the window and make it full screen when i want to test out new macros and rewrite them or flip through my enchanting menu without having to squint.

You can set affinity by going to task manager and right clicking on the wow application and setting it manualy. But this is not nececary beacuse you have more than enough processing power without doing this.
I'm using win xp X64 with an e6600 dual core 8g ram(worked the same with 4) 8800GTX. the only time i have low framerates in in Org.

But if this answer is not what you were looking for i'm sure someone else around here has the answer you need. good luck.