http://www.hot.ee/newlogic/
Coz/Frek, here's Logic audio platinum for PC if either of you are interested. the daddy of all sequencers, though it's the final update for the PC version since apple bought logic. definately the most flexible sequencer out there hands down, but it has a super-steep learning curve, so i'd start with something like cubase before you mess with logic, frek cuz you seriouslly wont know what the fucks going on if you try jumping straight into logic :) did you still want sonar, coz? i could ask the dude who runs the hot.ee sites if he has it up there somewhere, i don't use it, so i dont know if it's up there or not.
what synths are you looking at frek? a lot of analog synths have inputs so you can run audio through their filter (which can be tight). are you looking at analog style synths? or more pcm ones like your roland?