DeepCool's LS520 is a great cooler which provides top-tier cooling performance at a budget price. Featuring the 4th generation of DeepCool's in-house water pump design, the LS520 provides performance similar to AIOs twice as expensive at a very reasonable price of $109.99 USD. Unless you need a fancy LCD screen on your cooler, there's no reason to look at any other AIO in this author's opinion.
These are the quietest keyboards that I have personally tested, and that alone makes them great for office use - these models are also very comfortable to type on, even for long periods of time - unlike other mechanical keyboards which can give you finger strain if you mash your fingertips for too long. The build quality is phenomenal and extremely sturdy, like that of a steel baseball bat.