My PC is seven years old and I am looking for a replacement. The problems/upgrades I have had over the seven years:
* Upgraded the memory because system was too slow and 1G was not enough.
* Power supplied failed and had to be replaced.
* OS SP upgrades.
* Much too Noisy (although quieter after a clean

).
* Upgrade the 160GB hard disk because not enough storage, and also too slow.
I now live in a different country and won't be able to upgrade until I get back home in about 2 years (and am making do with an old ex-work laptop which is VERY slow and has also been upgraded to make it tolerable!).
Anyway, I want a system which will last me another 7 years which is powerful and expandable and which is very quiet. Not exactly sure what I will use it for mostly, but main thing is it can accomodate an as yet unspecified workload (but might include gaming, office work, etc).
After researching for a week, I reckon something like the below represents the state of the art in performance and quietness, is about $5500 Australian Dollars and would serve most needs.
2 x Crucial RealSSD C300 SATA 6Gbps 256GB
1 x I7 980X - INTEL CORE I7 3.33GHZ
1 x Kingston HyperX 12GB DDR3-1600 Memory Module (Kit of 3) for Desktops
1 x Power Color 5750 Go Green Passive Cooling
1 x GA X58A-UD7
1 x Fortress FT02B Case
1 x Seasonic X-750
1 x Scythe Mugen V2 cooler
1 x Optical Drive
1 x Lamptron FC-5 fan controller
In about 2 years hopefully an Intel CPU of similar performance will be a lot cheaper

, SSDs are cheaper and higher capacity (e.g. Intel is supposed to becoming out with a 600Gb model using 25 nm technology in 2011), and native support for SATA 3 and USB 3.0 is supposed to be available in Q4.
How does this system sound? I dont typically upgrade very often, so would want to start from a high base! Will keep mass storage off the system and look at a separate NAS at later date.