Rough idea on specs?

[rollnloop]

Here's my idea of these, should be reasonable for about every hardware intensive sim, BoB included:

Buy the highest CPU you can afford, preferably with high freq and/or good overclock possibility, and minimum 3 cores (i'd go for 4, RoF and ArmaII use these, no reason BoB would not). Sims are always CPU limited. I wouldn't go for hexa yet, BoB won't probably at release use all those cores, or at least not efficiently since it's difficult to program for hardware that doesn't exist.

Buy a reasonable GPU for the res you play, for a 22 to 24 inches monitor the "next to best" or at least "best in previous generation" GPU should fit perfectly, maybe even one more down the list should still fit well.

Buy as more RAM as you can afford too, with the OS to use it (64bits), RAM allows to play on big maps, with many different objects (planes, tanks).

Buy a SSD or a 10000RPM HDD if you can afford it, Sims tend to use quite some space, and to load much of it at each play.

All of this is speculation, of course, but 22 years experience with simulators says it should prove quite accurate in the end.