Frankly, I suspect you will have difficulty finding a "mod-able" 9500 nonpro these days, given all the interest on the subject. Also, most attempts at modding do not seem to have been successful. Reviews of the subject on message boards with large numbers of participants indicate an overall success rate of about 30-40% AT BEST! And most of those are probably false positives, since people didn't test their cards long enough to detect the artifacting that is commonly produced (in other words, many people did the mod and immediately reported success without testing it). And that's if you get a mod-able card to start with (it's unknown how many, if any, are still available!).
Frankly, the 9500 Pro is still the best price/performer of the lot, and is likely to remain so even when the 9600 comes out.