Just finished my Dark Knight themed MendelMax 1.5. Great printer design. I highly recommend it. Aside from drilling and tapping a few holes, it was extremely easy to build.
I use an old xbox 360 power supply and RAMPS 1.4, both of which are mounted under the build platform. I painted the Prusa MK1 heated PCB bed gloss black (make sure you use high temp paint).
The wiring is cleaned up with TechFlex 3/8" wire loom. Check it out on ebay. I paid $4 for 10' which was plenty and it makes the printer look so much more professional. Great stuff.
A little more expensive than the standard Prusa i2, but definitely worth it in the end.