How will i go about finding or creating drumbeats etc that sound fataly eighties. I'm thinking Depeche Mode, The Cure, OMD etc
If you mean in sound terms, maybe use a little reverb on the drums, not sure if it's exactly that, but eighties poppy drum sounds seem to have something along those lines anyway.
Get a Linn drum machine or samples of one. The 9000 is a good unit and with a little tweaking it will handle almost everything 80's.
The reverb is a good point, but i'm talking about that classic 80's synthy beats. More like drum loops than anything else