Decided to go the hard way (as usual.....my wife.. ). I have had my prusa I3 working on Ramps/Marlin very pleased with it's performance. Now I like to hook up an LCD, rotary encoder and microsd card reader to the machine. I have sourced all parts as shown in the photo attached rather than buying a complete smart controller..

Can I be pointed to a tutorial or some wiring diagram on how to hook up the component to my ramps board.
Also what modification do I need to make in marlin to make it work?

Thanks!!

[reprap.org] for lcd
[forums.reprap.org] for a sd card
then encoder is just a bunch of switches.

Also take a look at how RRd does it [reprap.org]

and here's a bit more....

[tommyc-reprap.blogspot.co.nz]

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Waitaki 3D Printer

Thanks Thanks alot guys!! All links where useful especially the ...tommyc.... showing the changes to make in config.h which I already found earlier. Finally all is working on my breadboard, I also manage to rename the printer!! super cool (even the wife thinks it's cool), now printing a case for them.
Here is a photo of it
[sdrv.ms]

Once all cased up I will put it online somewhere as a tutorial guide.