595 help

im currently trrying to turn an 8 x 8 led array into a small pov device and then eventually into a touch senors. im trying to use 2 595's to drive the cathodes and anodes but im unsure as to which chip to use. im looking at arrow electronics and they have 8 diffrent versions of the 74HC595 each ending with some diffrent letter. i was wondering what these letters ment and which is the one i should order for my project. Thank you

really any 595 should do fine as long as it's in a dip format. some can drive more current then others, but for what your doing, i'm sure any standard 595 should work fine.

btw, just curious but why are you using a matrix to do pov work? the ones i've seen before just use a single row of leds.