Read around places like anandtech and OC3D, as mentioned above, videos are good to watch. My personal favourites are Linus Tech Tips (he has a nice cat) and TTL from OC3D.
There are loads of these types of youtube channels and most have forums where you can keep up to date with tech news and see build logs/reviews/discussions on current tech.
Zalman Z9 Plus
Intel Core i5 2500k @4.2Ghz
Cooler Master Hyper 212 EVO - Corsair SP120 x2 in Push/Pull
VTX3D 7870 Tahiti LE
8GB Crucial Ballistix 1600Mhz
Kingston HyperX 120GB SSD
Western Digital SATAIII 1TB x2