Since Firefox always tries to use "Connection: Keep-alive" and since most websites use not more than 2 different domains (for static & dynamic content) I think there is no sense in 8 different tor's. 3 will be far enough.
So the use of 8 Tors and 8 Privoxy would be overkill? Would it improve my bandwidth over Tor though? Also should I be using Privoxy, I have been reading around and saw mention of Polipo. I don't really understand the difference other then that Privoxy seems to be actively maintained.