If you really want to buy more consider buying 2 Jan or Mar '08 115 calls. You can get the appreciation without the exposure. You risk losing your whole $2,000 but that is it. PCU could stumble one day, drop 10 points and slide under 100 and never recover.
The idea that this stock is a dividend play is over. Too many momentum players are now in PCU and they will be gone at the first whiff of trouble.