For instructional videos i suggest you check out Singularity Computers, Ronsanut and Jayztwocents youtube channels.
 
The radiator is sufficient however, i would add an extra 240 or 360mm radiator in the front. For pumps you want the D5 line as they give the best combined pressure head and flow rate for the restrictiveness of the GPU configuration.
 
The fittings would depend on what type of tubing you will use, if you use rigid tubes you need compression fittings for rigid tubing, Monsoon and PrimoChill make some good fittings for this and if you use flex tube you need barb or compression fitting for flex tube, XSPC, Monsoon, Bitspower are some of the better ones but that is not to say that any other is worse. If you use barbs you want to make sure you have clamps as well.
 
For the coolant i would just use Laboratory grade distilled water with some Monsoon silver bullets.
 
For fans i recommend Akasa Apache or the re-branded version from Rosewill, 
 
Miscellaneous
Flushing your blocks and radiators before install is always best as to remove contaminants that remain in the components during assembly.
Hose cutters relevant to the type of tubing you are using either rigid or flex.
Try to leak test outside your build to ensure you don't kill your components.
A roll of bounty for leaks.
A PSU jumper for starting the PSU without needing the motherboard for filling and flushing the loop of air.
 
Happy WCing.