We get this question a lot and what we always recommend is:
1) a set of dumbbells, whether you go with adjustable or some pairs around the weight that you would be using.
2) a good bench, Flat/Incline/Decline will give you the most flexibility
3) a mat for floor exercises
These will give you a ton of choices when it comes to mixing up exercises and we will add on to this including some items that Scott recommends as packages on our site. If you have any questions or comments would love to read them.