A couple things:
1) the only coil set up (and I currently run it) I would even consider is the Delphi D585 coils (also known as LS2 truck coils, yes American V8 coils). These coils are the hot sh*t in the custom world as they are verified to put out more joules than just about anything out there on an actual Oscilloscope. Not marketing, BS, rumors, "oh my buddy's cousin's sister runs them," actual energy readings. Mojo performance makes a COP bracket for a reasonable price for the RB26 I know. I think he offers for the 25 as well, but go to his website and ask. I think the Audi R8 coils are also supposed to be pretty good but I haven't seen any ACTUAL data on them, just hearsay and I know they fit well. Spark energy aside, the audi and ls2 coils are good ideas because they get rid of the crap factory ignitor.
2) waste spark means absolutely nothing. it's just a coil firing concurrent with another coil firing. it does nothing for the other cylinder (that spark event is "wasted" hence the name). It allows you to run an engine on 3 ignition drivers instead of 6. If anything, wastespark reduces the effectiveness of your ignition because at high rpms, your coils could potentially run out of dwell time between spark events. that is basically not going to happen but it's the only event in which wastespark/sequential ignition may make a difference. Don't confuse this with sequential injection which IS a big deal. Your stock ECU already does sequential ignition and injection. Don't mess with it.