please do not buy any Thermaltake water cooling kit as the quality on their parts are not very good. However, from the products you picked from Danger Den, you have an awesome pump, but the lowest end block and radiator. If you plan to cool your gpu as well, you should go dual 120mm radiator or at least a BIX. you really dont need a reservoir, but if you do not want to drill a hole in your case for a fillport then stick with the reservoir.
Heres my proposal: get the TDX block and D5 combo for only 108. Its a tiny bit more than the maze 4 and d5, but you get such a better block. Heres the link: http://www.dangerdenstore.com/produc...&cat=69&page=1
Also, i know danger den inflates the weight on their products so shipping costs alil more. So if you want teh gpu block, some tygon tubing and arctic silver 5 and the radiator, i suggest you get them here: http://www.shoppts.com/watercooling.html.
They dont charge you extra for gpu mounting hardware and danger stuff is cheaper there.
I forgot to add, you can buy 7/16" tygon tubing at PTS also. Its easier to work with then 1/2"