[quote name='Pete Academy' post='566999' date='Aug 12 2009, 05:20 PM']Sounds like the best way to me. Learn the chord changes, then put in the fills. The more you learn songs, the easier it gets. A Tascam CD-BT bass trainer will make it easier, as it has a useful looping feature.[/quote]
+1 on the trainer. I have the MP3 version which is great. You can also slow things down without changing pitch which is useful for those tricky bits.
If there are words learn those as well, even if you aren't going to sing them. Will help with knowing when the changes will come.