First of all, thanks for helping out the noobies.
Could you recommend me begginer guides for mining, mainly about buying hardware, at what point the investment is worth it, which hardware to buy, etc. I've been searching for guides, but every one I find seems quite outdated.
Many guides are outdated because Bitcoin mining is no longer profitable unless you have thousands to invest in buying hardware.
However, our miners are important because they process our transactions. Check out AntMiners, they're pretty decent ASICs. Or, if you want to take the cheaper route, just buy some AMD cards (: