right, thats sounds cool but...
you might want to look at this site,
http://www.cogestra.com/, its a swiss site and i know the owner very well, he buys at wholesale and sells much cheeper than retali, since you are lookign at a german site for ordering ur bits, the postage will be similar if not cheeper becuase, i might be able to sumuggel the stuff into france and post from there (Eu common markets).
secondly, you might want to rethink some of the bits, in my humbel opinion allthough Intel cpus' are slower, they are also much cheeper and you will be able to get a 3.6Ghz cpu form intel for a similar price to a 2.4 Ghz AMD one.
DDR ram? i can see that u get more DDR ram for ur buck than DDR2, but DDR2 is much faster than DDR. if you look that the site at i gave you, you can get 1Gb of DDR2 ram for the same price!
the GFX card is good, i can see a big price hike between the X800 and the X850, the X850 is better, but if your on a budget, the X850 is a waste of time and is only for bragging rites...
finaly, overclocking. if u want to do this, you will need to het a good fan for the CPU cuz otherwise it will burn, overclocking will bump a 3.8Ghz CPU up to a 4.0 one, the performance will improve but you need the techinque and need to read many reviews before you try it. overclockign will make ur stuff run faster louder and will give you a chance to burn some money if u overclock too much and the stuff dies on you
anyway, thats just what i think, i would look at the site
http://www.cogestra.com/ as you will come up with a much better deal. + me doing the smuggeling is a possibility
andy