Heh, I think that answers that question. As for your computer buying, you're a smart guy so I'm sure you can do good research on a good "bang for the buck" CPU/GPU/etc combo...so I'll just give the same warning I always do on new computers: don't skimp on the power supply, cooling, or thermal paste. Spending a little extra on these will save you time, headache, and $$$ down the line.
- There's more to a PSU than just having enough wattage; higher-quality will give you more stable currents to your other components, use less energy, and generate less heat. I usually buy Corsair, just a personal preference, sure others have preferences as well. Look for something 80plus certified.
- Value of efficient cooling is obvious...quieter stuff, longer-lasting components, and can even OC if you're brave. For example, it could be less expensive to buy a cheaper CPU and OC it with proper cooling than buying a more expensive CPU. CPUs tend to be able to run faster than on the box, anyway, because of how they are manufactured. IE: if a factory is making 2.5-4.5GHz processers, most of them will pop out able to run safely at close to 4.5GHz, but due to pricing strategies they put many on the shelf @ 2.5.
- Don't skimp on thermal paste. CPUs are expensive; bad thermal paste will dry out in a few years and then cause your components to get hot. This is a large reason you see hardware components tend to die juuuuust out of warranty. I usually buy Arctic Silver, but again, a preference.