Iwant to get an h100i or an h100i gtx? Which is better? What are the differences? Which one has the rgb led? Lol. If i do get either of those, is that all i need to get or do i need to get another part for it? Im new to water cooling so im unsure if i will need anything else. Do i need a pump or a radiator or does it come with one? Ive tried looking for the answer to that but everything just says you should have room for a radiator,not whether or not it comes with one.