All Purpose Tame Monster Build Advices

Hi, I'm making the last runs of evaluation for an all purpose middle-to-heavy-weight new build. I would like the advice of people who built new systems in the last 3 to 6 months about the performance results, as well as any alternative parts advice.

My current list is as follows:

- CPU: Intel Core i7 2600K
- MoBo: ASUS P8Z68-V PRO/GEN3
- RAM: CORSAIR 16GB(4x4GB) Vengeance Gold 1600MHz CL9
- SSD: CORSAIR 120GB Force 3 Serisi Sata 3.0 SSD
- HDD: (will use 2TB WD Caviar Green SATA2 from previous build, no new purchase)
- GPU: ASUS HD6970 DirectCU II GDDR5 2GB 256Bit AMD Radeon DX11
- Case: COOLER MASTER HAF 912 PLUS GX 80PLUS 750W Midtower

This configuration comes to $1570 + VAT ($1850 total) in my area. I would like to keep the price between $1600 and $1900 total (VAT included), so keep that in mind for your part advices please. The parts listed above are the only parts I will be buying. So no need for advice on unlisted parts. (Though if you recently bought an unlisted part that you immediately fell in love at a distrubing level, feel free to promote it.)

Intended use of the system will be somewhat mixed. I will be using this machine both for work (office intensive) and gaming, as well as for home cinema. Most of the time I watch some movie at the side while working, or play a windowed game while waiting for some boring task (not diagnostics, mostly document parsing, PDF conversion, etc), and almost always I have one or two multi-tab Firefox windows open on the background, so multitasking and capacity are non-negotiable.

I will not provide website links since I am not in US. In fact I am more interested in part alternatives which are relatively less expensive while providing a close level of performance.

Another big concern is longevity of the system. I rarely find the chance to spend big on computer hardware, so this build will have to last me for at least 4-5 years with gradual changes in unlisted peripherals.

I am considering safe overclock, barring an alternative way for above-medium performance or a persuasive argument that I definitely would not require it.

In that context, I am undecided on the GPU. Though there are many great ones out there, and many more are coming, I won't be burning the night's oil before GPU monster games. I will definitely sample, even regularly enjoy them, but it wouldn't be worth for me to buy a GPU worth as much as the sum of the rest of the list.

My current monitor (Philips 190WV) tops out at 1140x900, so it will be the first unlisted peripheral I will consider changing to match the new system. Advice on worthy (and economic) monitors would be early, but still welcome.

I am moderately concerned about power and noise issues, so some advice on these issues (based on experince, preferably) would be welcome.

Thank you in advance for your consideration.