anything you can tell me about the varoious brands of air coolers so that i have a wide selection?
In general, cooler performance is determined by
- the mass and fin area of the heatsink
- the number of heatpipes
- the RPM and blade area of the fan
So for instance if you take any 120mm cooler you should expect similar performance to any other 120mm cooler with similar heatsink construction and a similar RPM fan. Brand doesn't matter all that much for performance, but it does matter in terms of quality, noise levels and noise profile, as well customer service and warranty related things.
Cooler Master 212 (EVO) is popular and decent for what it costs (though as I mentioned the 212 EVO is currently a bit overpriced). Given the above paragraph, several other brands offer a very similar product at about the same price. Some examples: Arctic i30, Enermax ETS-T40, Thermalright True Spirit 120M. Somehow though 212 has managed to grab that spot for
the mainstream 120mm cooler.
Phanteks and Noctua offer premium grade products for those who want to pay for quality, although I'd say when you compare the absolute highest end air coolers, Phanteks and Noctua also offer the best value in that segment. Noctua in particular is specialized in excellent acoustic performance.
Scythe (not available in the US) and Thermalright (only available in a few places in the US) both offer coolers that perform very well for what they cost and stay quiet as well. They're my favourite air cooler brands. Scythe in particular typically uses fans that are capable of extremely low RPM operation when idling, while everything Thermalright makes just performs better than almost anything that costs the same.
Arctic Cooling and Noctua are the only ones that offer 6 year warranty, that I know of.
I won't comment on other brands, there are just so many of them and these are the ones that stand out, to me.
so with the true spirit 140 and a asus 970 pro 2.0 or 990fx motherboard what could i overclock to and be completely stable? would the 990fx make any difference as far as to overcloack speed or stability?
The M5A97 R2.0 (notice no Pro in there) is what you need to get to 4.5Ghz. It has standard Asus overclocking features, 6 phase CPU power and heatsinks, all you need for a relatively high OC.
why would you get 8.1?
at christmas i used windows 8 on a touch laptop and while it seems like it was a good fit for my grandma i really did not like how it was used.
Firstly, because it's newer, improves performance slightly over 7, improves boot times, and has plenty of other improvements "under the hood" (which don't really show though). Secondly, because I've used a laptop with it (not touch screen and not 8.1 at that time) and I liked the user interface.
i heard that the network settings have been completely messed up in windows 8. is this true?
No idea.