Forum Moderators: open
at the end of the day, the CRUCIAL thing is that The Title should be RELEVANT to the user searching.
in standard serps, that is 1 of the most important factors in getting a CLICK, which is the whole point if you are trying to rank high (no point being #1 if no one clicks)
Your main Keyword in title always helps, but try and make it relevant, rather than creating "Keyword, Buy, Keyword, Find Keyword, Cheap Keyword"
as for the length, I try and keep UNDER 50 characters (including spaces)
Shak