Picking the right kernel for you

I found this looking through the ubuntu forums trying to look for tips to get firefox just a tad faster. I subled upon this guide, and I promptly followed the instructions. I installed the "k7" kernel seeing as I have an AMD Athelon 750 mhz. After an upgrade and restart it seems to be running fine. I was running the base i386 kernel, so pick whichever one best suits your processor and just follow the right "apt-get" line.