mobos for x16 Nvidia GFX card

Hi,
Please excuse my ignorance, but i'm looking to find a decent mobo that has a x16 PCi E slot for my x16 Asus GT6600 Nvidia card.

I had an Asus A8N32-SLI-DELUX, but it died on me. From reviews i don't trust this board anymore and am looking for a hopeful stable alternative. I'm thinking of the Asustek A8N-SLI PREMIUM S939 nForce4 SLI ATX, but am not sure if it has a fully x16 GFX slot.

I'm not interested in Sli, i just want a x16 slot and a relatively stable/reliable mobo. I live in the UK if this makes a difference, and have a AMD 3700 chip.

Many thanks for any help

Paul