Stan James is a large bookmaker and so can be expected to pay out on all bonuses.
While Poker Room's support are completely useless and can leave you waiting forever for a response to an email, i cannot recall them not paying a bonus.
you should check out
Online Poker - Free Online Poker Bonus Comparison and Reload Guide for a comprehensive review of all bonuses and you can also filter the better bonuses for the limits that you play.
and welcome and good luck whoring those bonuses
