I don't know if they are running a sale or not. Most smaller retailers do not. As far as the coolant, just use distilled H20 and a biocide (PT Nuke or silver coils etc.) If you want to add color, use a dye rather than colored coolant.
I would use shrouds as they increase performance and help remove the "dead spot" in front of the fan blade hub.
You would use either a T line or a res. You don't need one if using the other.
The capacity depends on whay you are running for a loop. It is usually less than you'd think, though. For example, I had about 500cc or so in a CPU loop with a T line, one block, pump and 240 rad.
I would use shrouds as they increase performance and help remove the "dead spot" in front of the fan blade hub.
You would use either a T line or a res. You don't need one if using the other.
The capacity depends on whay you are running for a loop. It is usually less than you'd think, though. For example, I had about 500cc or so in a CPU loop with a T line, one block, pump and 240 rad.