Hey Harm, fancy building it for me?
No problem!. I've done it for friends all the time. Send me a PM.
Seriously, many people think it is difficult to build your own system. It is not. If you can handle a screwdriver, you can build your own system. The difficulty is selecting the right components that will fit together, without causing compatibility problems.
Another thing that is very beneficial in building systems is having access to people that know what they are talking about in hardware/systems terms, like Paulie. Not the slick salespeople, who will sell you anything, as long as they get their sales bonus, no, those who really understand what it takes to build a good, stable and reliable system. If you know some people that have their MCP, MCSA, MCSE, CCSE, CCSP and similar certifications, it will certainly make life easier.