Both Harmison and Pathan, in my opinion, have the potential to be right up there with the all time greats once their careers end.
They (seem to) have that something about them. I've not seen Pathan, but from all accounts he can produce it when it matters... we're in a bit of a lull for pace bowling right now - Donald, Wasim, Waqar, Ambrose, Walsh, Gough, McGrath et al are in the twilights of their careers, and it's time to see who the next generation will be.
Some people seem unable to accept the passing of the old guard.. but I say, who's going to be the seamers who in ten years time will be looked at as names that can't be matched, who children aged six and seven today will be looking at in awe in the same way we do to the above men.
Australia - Not Brett Lee! Shaun Tait? Mitchell Johnson (if he stays fit)? Dave Hoitink?
Engand - [Obviously I'll get a longer list of candidates here] - Steve Harmison, Tim Bresnan, David Stiff, Liam Plunkett, Sajid Mahmood (less so Jones/Anderson/Hoggard - don't think they have the potential to be more than very good)
India - Irfan Pathan (less so Balaji again, don't think he'll be top drawer)
Pakistan - There's about nine hundred who could, I guess - not Junaid Zia, for sure!
Sri Lanka - Looking more than a little thin - if Maharoof's all they have then bye-bye
Bangladesh - Long way to go yet!
Zimbabwe - Erm
South Africa - Mfuneko Ngam, should he stay fit..
New Zealand - not looking overly hot from what I've just seen.