Welcome!!!. 1st, Koolance isn't the way to go. For the same amount u could choose ur own parts and get twice the performance.
For a pump, most choose Eheim 1048 or 1250 and so on. Another good choice would be a Maxi-jet 1200, small yet powerful.
For a radiator, i prefer a Black Ice Extreme or you could go with a heatercore from a junkyard, both will work fine.
Whether u want a res or not is up to u.
Also, go with 1/2 or 3/8 inch tubing.
For a waterblock, DangerDen is quite popular.
Use distilled water and add a bio chemical, like water wetter to kill algae and so on.
Some sites u could check would be
Danger Den ,
Frozen CPU ,
Sharka Computers ,
Xoxide , these should give u a good start. Good Luck!!!
Try to stay away from those all in one kits like the one by thermaltake and such. most arent worth the money, although i hear innovatek isnt so bad...worth looking up maybe.