Well there are many ways that you can format data, including tcpdump data. If you are looking for some thing quick and dirty you can simply run the output manually through grep to sort out the basic lines you want and play with cut, awk & sed to break it down to the details. But I gather that you are likely looking for something a bit more polished to play around with. One of the best options to work with tcpdump info is ethereal.
The good news is that it is available for free and runs on Linux, Unix and Windows... Hard to beleive that so few can have so much fun.