The question was edited with a budget after I posted this answer.
If you are looking for something more fancy, something a bit quieter, and a lot colder, I recommend you check out the NZXT Kraken x61. I do not believe it fails very often, as it's been around for awhile and it's relatively popular, plus there are no negative reviews about the pump failing, so I'd say it's pretty safe. It is available for $140 USD on the official NZXT website.
You can get is from a 3rd person retailer $20 cheaper here.
Pros:
- Variable pump speed (quiet when it needs to be)
- A lot colder, good for overclocking and heavy load
- Nicer looking (if you care)
Cons
- More expensive than the other option
- Has the possibility to leak, though unlikely
I say it all depends on your paranoia and budget.
