My first build: Final revisions-Help&Advice (budget build)
 

After many posts and research, I think that I've found what will ultimately become my first custom build. Although I can afford what follows, I am on a tight budget so saving anywhere I can is very feasible. I'm not saying that I must cut certain corners, so if you think that paying a little extra cash for something is worth it, then I will consider keeping it. Thank to whoever reads and/or answers this. c:

Budget: Ideally $650 (preferably less).

Intended PC use: Chrome web-browsing with many tabs, YouTube, Gaming, Office applications, watching movies & shows, Photoshop, multitasking between these programs, etc (all in 1920 x 1080 resolution). I also want the computer to be ready for upgrades in the future.

Build:

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-2500K 3.3GHz Quad-Core Processor ($197.99 @ Amazon)
Motherboard: ASRock H77 Pro4/MVP ATX LGA1155 Motherboard ($87.55 @ Newegg)
Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-1600 Memory ($39.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($69.99 @ NCIX US)
Video Card: Sapphire Radeon HD 7770 1GB Video Card ($134.99 @ Newegg)
Case: Antec Three Hundred Two ATX Mid Tower Case ($49.99 @ NCIX US)
Power Supply: Corsair Builder 600W 80 PLUS Certified ATX12V Power Supply ($51.98 @ Newegg)
Optical Drive: LG GH24NS90 DVD/CD Writer ($17.99 @ Amazon)
Total: $650.47
(Prices include shipping, taxes, and discounts when available.)

Questions/Misc

I know I can save on...

the PSU:
I know that It's more wattage than I need, but I want to be able to upgrade. If I go non-modular, I am sure I can save some money. Is going modular worth the extra cost?

the case:
I know I could easily save money by downgrading it to the regular three hundred, but is the "two" version worth it? If I downgraded, what will I do about the 3.0 USB ports?

the CPU:
I could instead use the Intel Core i5-3470 3.2GHz Quad-Core Processor ($190.39 @ NCIX US) to save a bit, but I would lose the ability to overclock. Although I really have no idea how beneficial overclocking is, I would like the ability to do it. Is having the ability to overclock worth the extra cash, or should I just go with the 3470 to save a bit?

So what do you think? Anywhere else I can/should save? Opinions, advice, recommendations?

*TLDR*: Does my build look fine? I intend on buying an aftermarket CPU cooler in the future, as well as an SSD. Anywhere I can save?

I really appreciate you taking the time to read this and perhaps answer some of my questions! Thank you and have a great day.

Don't have much time to comment, but a big point for you is that you need a K CPU and a motherboard that supports OC in order to do it (the MOB you selected does not). You need a Z68 or Z77 motherboard in order to overclock...not and H based motherboard.

You can't overclock the CPU on an H77 motherboard. You need a Z77, (EDIT: Z75), Z68, or a P67 to overclock. Either go to an overclockable motherboard or return to that 3470 Ivy you were talking about.

On a Sandy / Ivy platform an overclock isn't a "requirement" by any standards. Every game that has some decent programming would be able to deliver playable frames per second on a stock quad core Ivy Bridge, pretty much because they have to - nothing beats those CPUs in performance/clock at the moment.
(The same can't be said if you're using an AMD CPU.)

In contrast to the posts above, there are overclocking options available on H77 boards.
Reference
You can do so with Ivy Bridge/3rd Generation "K" procs, but nothing else. Also you're not guaranteed control over voltages.
So it's not impossible, but it certainly has its limits.

If you want to be able to have usb 3.0 you can get an internal hub or to save money you could also get an antec one