I don't know what most of that means, but I got got most of it and that's what matters. ("Leverbaar binnen 2 werkdagen" means "available in 2 working days" and "Direct Leverbaar" is "available now"? I'm rusty on Dutch)
GTX650 and 8G of memory is great for mild gaming. Where I run into issues is with the FX-6100 and the FX-minded motherboard. Six cores will not help you in mild gaming over a 2 core i3 Intel, but may be better for After Effects Premier Pro. Clock for clock, AMD is just below Intel by quite a bit now days when it comes to pure performance, however AMD is ahead in the details like more PCIe S/ATA3 pipes.
If you can spend a bit more, I'd look into something like the i5 3350p
and a decently priced Socket 1155 motherboard.
If you need more clarification, I can try to reply again more simply. Language barriers can be a pain sometimes but will try my best to work around them.