Are the computer components compatible?

I would recommend a am3 motherboard than a am3+ motherboard in which is really made for the upcoming bulldozer series,many blogs said that the phenom ll series will work with the am3+ motherboard ,some say it won't because of being unstable so if i was you am3 cpu with a am3 motherboard,agree about the hdd go with the western digital caviar {black}} also recommend the ati radeon hd 6790 a better graphic card for gaming, check at nzxt.com for info on that removable slots for the lexa s,good build rating of 9.5