I've been watching the forums here and at Daz and reading about the problems e'one is having with B7 pro. 
I don't have a powerful machine:

Compaq
32 bit OS... Vista Home Premium
AMD Athlon... Dual Core...2.3 GHz
3 g RAM

I bought B7Pro and I've been pushing it to see what I can do.. The picture I just finished has 260 items in it and most were imported from DS.  I've duplicated a bunch of them after import so not every 'single'  item was brought over that is  in the picture.
Included are trees from DS and animals...different kinds of grass..tractor..hay bales..water tank..wooden fence, hay wagon...etc.  Its a barnyard scene.

Nothing ever crashed while I was doing it.  Although Bryce did tell me a couple of times that it was out of memory..so I rebooted and kept on working..but no crashes.   I  usually kept DS open and worked back and forth between it and Bryce.

I do keep things turned off on my PC while I'm working tho...no screensavers..no desktop themes...no monitoring devices other than whats normal for windows..no 'resource hogs' running in the background. 
I do keep my anti-virus and tea timer running and my PC stays connected to the net via DSL most of the time but I don't keep my mail running or my browser unless I need to use it temporarily and then its off again....and yes I've been playing with the lights and cloud stuff too.

Sometimes I think that a lot of problems are caused by all the junk stuff ppl keep running without even realizing how much it takes away from your computer's performance...which also affects your art programs where your resources need to be directed.....    JMO

 

“For those who believe, no proof is necessary. For those who don't believe, no proof is possible.”

[Stuart Chase]