Devin,
I.M.H.O. You have a very stable platform with the Adobe 1.5 suite and it plays well with the DVStorm (I am assuming it’s a DVStorm2 with Encoder board). Put the $$$ into the PC and your SW/HW combo will do you for now (barring any HD requirements that may come). The Storm does capture and realtime edit of MPEG-1, 2. If you haven’t already, go to the Canopus site and DL the SW utility that allows it to happen. If you need to go to PPro 2 then all bets are off with the Storm. Since Canopus (Thompson/Grass Valley) has there own NLE (Edius) they are no longer supporting PPro. But PPro 2 can be on the same machine as 1.5, so you can pick and choose how you Cap/Edit.
Good Luck,
Bob
BTW. Canopus’ site does have a forum with many long time users that could help you further with this, and the Cow does have a Canopus section also, you may want to look in those places for info also.