hi there 8)
i've tried the Ibanez SM7 Smashbox, i recommend you list it down with other contenders like the Metal Zone (BOSS) & Jackhammer (Marshall) among others. it's a worthy pedal, no kidding...
the Smashbox has lots more drive than the BOSS DS-1. if you wish to use the smash box as a main distortion source, you are on the right track. the DS-1 on the other hand is a little too mild to function as a primary drive unit, the reason why
Joe Satriani use it as a booster instead.
what the Smashbox lack is really a 'Mid' control in its EQ offering, it might sound a little too trebly at certain settings, thankfully the 'EDGE' function helps to polish things somewhat but it's not as dynamic as what a real Mid control would do. all in all, it's very much overlooked because too many players are shoved the Metal Zone in their faces & accepting this black box before they actually assess the options available in the market. please do not pay more than $100 for a used unit...
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for 2004, Line6 offered the
Uber Metal pedal which is one heck of a distortion unit, do add this one to your list too:
http://www.soft.com.sg/new/modules.php?name=Forums&file=viewtopic&p=17891#17891