Voilà pour 700 euros de très bon rapport qualité/prix :
http://www.amazon.fr/MSI-B85-G41-PC-Carte-Socket/dp/B00D12OASW
http://www.amazon.fr/Intel-BX80646I54460-Processeur-i5-4460-LGA1150/dp/B00K5J2306
http://www.cdiscount.com/informatique/cartes-graphiques/sapphire-radeon-r9-290-dual-x-oc-4go/f-10767-112271220g.html#mpos=1|cd
http://www.amazon.fr/Seagate-BARRACUDA-disque-interne-serial_ata600/dp/B006BRBSE8
http://www.amazon.fr/dp/B006YG9E7O/ref=asc_df_B006YG9E7O31216521/?tag=googshopfr-21&creative=22686&creativeASIN=B006YG9E7O&linkCode=df0&hvdev=c&hvnetw=g&hvqmt=
http://www.amazon.fr/dp/B00K8HBOIW/ref=asc_df_B00K8HBOIW30707391?smid=A1X6FK5RDHNB96&tag=clubic-rt-pc-21&linkCode=df0&creative=22786&creativeASIN=B00K8HBOIW&ascsubtag=seo_google
http://www.amazon.fr/dp/B00N8ZNXGC/ref=asc_df_B00N8ZNXGC31216521/?tag=googshopfr-21&creative=22686&creativeASIN=B00N8ZNXGC&linkCode=df0&hvdev=c&hvnetw=g&hvqmt=