Geoff, if you tell us which type of effect is the most important for you we can prioritize - you might also want to read this post to help you decide which products are most interesting for you:
I find it useful to get some products to experiment with, so you might consider getting some of the products as to-go which is good to get a solid impression without spending too much money.
Remember - you will also get a $25 gift certificate so there is no risk…
Here is the store-link: Pheromones To Go™ (Portable / Travel Size) :: Androtics Direct/SmartMones
hope that helps - if you have questions: just ask