[srb7f]

The red top is the way to go, unless you've got LOTS of electrical accessories that you plan on running (TVs, massive stereos, etc) or letting the car sit for long periods of time between startup, which in that case a yellow top would be better. As Dave said, either will work just fine, as these are the best automotive batteries out there. If weight is an issue, the red top is slightly lighter than the yellow.
For installation, make sure you get adapters for both sides of the battery. I found that the normal red top worked geat for me when I ended up putting it in so that the terminals were closer to the side of the car (instead of the motor). That way, the terminals are out of the way from the engine cover lid and the + faces the rear of the car (where your + cable will reach).