If you are looking to make nicer looking navigation with little effort, check out this article. This was pointed out by Mark Harrison who's a MSFT Portal technologies expert and lives in the UK. He has written some books on the subject (one around Commerce Server 2000) and is responsible for driving many of the MCMS samples on GDN through his partner expert community. He's a workaholic - I personally think it's because he drinks a lot of coffee and never ends up sleeping.