Venom Visual Scopes

What I Need: a powerful, AEG, airsoft gun that will last a long time. It needs to have 300+ fps and a high cap magazine. It also needs to be $70-$140.

What I want: I would like it to be an AK47 but it doesnt have to be, I would also it to be 350+ fps and come from a good brand. I would like it to be made mostly of metal and have rails on the top and side to put a scope and a light on. And lastly i would like it if it was fairly accurate.

Here Are Some Guns I was Interested In:

http://www.strikebacknow.com/store/viewItem.asp?idProduct=1417&idCategory=&rootCategory=259

http://www.hobbytron.com/ElectricBoyiDBoysRK02AKS74FPS400AirsoftGun.html

http://www.hobbytron.com/AEGElectricWellM16AssaultRifleFPS330MetalGearboxAirsoftGun.html

http://www.hobbytron.com/UTGWarhawkAK47AssaultRifle300RndFPS320AEGElectricAirsoftGun.html

http://www.speedytoys.com/shop/item.asp?itemid=1608

http://www.pyramidairsoft.com/ProductDetails.aspx?productID=882&referer=511