I have an AMD X6 2.80 GHz, 8GB DDR2 RAM and a GeForce GTX 550Ti video card, running Win 7 Pro 64-bit. I recently got into editing 1080 videos using Adobe Premiere. Some of the longer videos end up around 5-8 GB files size. It really starts to choke after 15 minutes of video time. I'm not really a video editing guy so I don't know what the weak link is. I was debating buying 16GB of DDR3 RAM, and I'm sure that can help a bit, I just wasn't sure if 16GB was enough. You can get 32GB for around $165 nowadays. Based on the setup I have, what would you recommend upgrading to help process and render these really big files?