New build: What should I install?

[Okcookienc]

My new gaming build is complete and I have a fresh install of Windows 7 ready to go. Other than that, the system is clean - no bloatware, no apps. It's just Windows and drivers. I want to keep this rig as clean and efficient as possible, but I also want to overclock my CPU and RAM, I want to tweak it and really maintain it (defrag, cleanup, anti-virus, etc.) I'm interested in monitoring performance and benchmarking. The question is: what utilities and apps should I install? I'm willing to pay if necessary. As usual, your feedback is much appreciated.

 

[Dark Lord of Tech]

This topic has been moved from the section Applications to section Systems by Area51reopened

 

[kajabla]

I think AVG Free is your best bet for antivirus (http://free.avg.com/us-en/homepage).

What are your specs? Specifically the GPU.
Many people like MSI Afterburner for GPU-monitoring and -OCing.

CPU overclocking you should do through the BIOS.

3DMark 11 is the most common GPU benchmarker; I believe it has some CPU aspects as well.

I use Mozilla Thunderbird for mail, but you may already have a favorite.

I don't know much about defrag software.