The e1705 has bluetooth.
Your screen should work but i think you have to keep the invertor from the e1705. (search the dell 17" forum)
It is 667 fsb.
The m90 only has 1 gig of ram.
As for gaming this m90 has the highest...
Alright starting right now I'm gonna drop my prices 5% every 48 hours until one of these systems sells.
I got this e1705 in July, new from dell. It's in near perfect condition, no wear on the palm rest because a have a plastic cover...
I just sold a 4 month old e1705 with a similar specs and a 7800go for $750 so good luck getting even that. For some reason I cant even get rid of my current e1705 with a duo, 7900, and 60gb 7200rpm hd for $1100.
I ended up getting some artifacts so I reflashed to 629/784, and its now stable with 10250 in '05 (i edited the post above not '03 and '05 but 05 and 06). I haven't put AS on my heatsink yet, that might help.