what power steering pumps work best on hydroboost equipped car?

[PhillySpeedNYC]

my stock gm styled pump with plastic res is shot and it groaned before the hydrooboost now its worse. i even see metal particular in my fluid which isnt a good sign and clear the pump is shot.i want to install the best possible pump to run my rack and pinion and the demands of the hydrooboost. i was looking intoto those KRC pumps with aluminum reservoir. any suggestions on what pumps i should be looking at and what flow rates? i want to upgrade right and not do trial and error on seeing what works. i plan to do a TCP power rack once i do the pump and sort this first issue out.