When you say "means", are you saying you don't have the skills or the time?
If its the former, just get a PC basics book. Building a PC is so simple that if you leave a chimp in a room with all the right parts, eventually you'll have a complete PC. But the problem is, he might somehow end up installing MacOS.
All the slots and sockets on the motherboard are different enough to ensure that you don't put the wrong thing in the wrong slot. The only thing is to make sure that the Heatsink goes on properly with some thermal compound in between. There are spacers available to ensure the core isn't crushed while installing the Heatsink. The rest is a doddle.
recommendations:
When you get all the parts, don't just put the motherboard in the case. It should come in an antistatic sleeve. Put that sleeve on a flat surface i.e. the Motherboard box. Put the board on top of that.
Connect the power supply and put the memory in. Put the CPU in, Put the HSF on. Put the Graphics card in, connect it to the monitor. Switch on. If it comes on and passes the BIOS tests, then all is cool. Switch off.
Take everything apart, except the ram. In some cases the ram slots are hard to reach, their kinda below the PSU and such. Also with some cases you can leave everything on, even the PCI cards when assembling the case!
Put the rest of the perhipherals on, and the HDD etc. Next, Install the software. (I would usually put, tweak the bios, before install the software, but thats a different tutorial.)
<font color=red><i>Poor is the pupil, who does not surpass his mentor</i> - Leonardo daVinci</font color=red>