I recommend investigating the Nord Modular synths, the Micro, G1, G2 and the free G2 demo. The bass is incredible on these machines and the detail and variation you can achieve in creating different kicks is really amazing.
I have managed to emulate the TR808 quite well in it, and reasonable versions of the 606. It certainly leans better towards electronic drum sounds and being Clavia Nord, it has it's own wonderfully unique sound too.
808 G1 patch: http://www.mono-log.org/pch/808-v2.zip
606 G1 patch: http://www.mono-log.org/pch/606.zip
Interestingly, last night I begun collecting nearly 60 different kicks from various important tracks to me, for a 1hour mix/radio stream which is primarily going to consist of only the kick loops. My hope is, and already this is eveident in the collection thankfully, that all that variation in eq, fx, level, pattern etc will be compared to each other from loop to loop. Some stand out as easily identifiable classics, other perhaps less so, some interestingly come from classic tracks but the kick part seems less representative, yeah, very excited about it and highly recommend doing something similar, even if just an investigation around kicks or particular electronic drums from artist to artist, track to track or era to era.
There was an interesting installation recently by Mark Fell actually, where he commented about the variations from the click-like kicks from early house music from various machines, the 707, Yamaha's, to the bigger thud and boom in techno of 808/909's. I think it also hints at how those tracks would have been shaped as a result of the difference in that kick, and this certainly goes for all the drum sounds.
Others that come to mind are tracks that use primarily only drum machines, one of the earliest I remember was probably DJ Hells - Hot of the Heels of Love (Dave Clarke remix)
Anyway, sorry, this is a subject I could talk about for a long time