List of parts:

AMD R9 280x GPU (buy 1-5 cards)

Corsair 850W Power Supply Unit (if you add 3 or more cards, you need x2, see PSU below)

Corsair 750W Power Supply Unit (use this as your second PSU)

AsRock H81 Pro BTC – motherboard

Intel Celeron G1840 2.8GHz Processor

Kingston 8GB RAM

http://www.amazon.de/gp/offer-listing/B0089JIDLC/ref=as_li_tl?ie=UTF8&camp=1638&creative=6742&creativeASIN=B0089JIDLC&linkCode=am2&tag=ethminer-21 (CHECK THIS)

Kingston 60GB SDD

http://www.amazon.de/gp/offer-listing/B00A35X6GM/ref=as_li_tl?ie=UTF8&camp=1638&creative=6742&creativeASIN=B00A35X6GM&linkCode=am2&tag=ethminer-21 (CHECK)

Dual PSU adapter

http://www.ebay.de/itm/PCI-Express-accessories-Cable-Extender-Adaptor-Ribbon-Riser-card-1x-4x-8x-16x-/191761261109?var=&hash=item2ca5dca235:m:mWpYtJVgtLoDKx03a-GwBGw

Power Supply splitter

https://www.amazon.de/Adaptare-36052-Grafikkarten-Stromadapter-6-polig-weiblich/dp/B003T7071I/ref=sr_1_fkmr0_1?ie=UTF8&qid=1465940655&sr=8-1-fkmr0&keywords=PCIe+splitter+cable+1-x+6-pin+female

PCIe Riser Cables – x1 for each graphics card

Power button

Optional extras

Ethernet Cable – CAT6
Screen/Monitor
HDMI cable or VGA cable and DVI to VGA adaptor
Mouse
Keyboard
Energy monitor – Optional if you want to track how much energy your rig is using
Cable ties
Gaffer tape
Philips head screwdriver
Open Air DIY Frame