Amp or speaker first, upgrade


Hello audiogoners, it's the Brahman on a beer budget with an upgrade dilemma.
I currently have a Krell s300i, a pair of Definitive technology bp8080 as my system.
Now, I want to upgrade both but, one at a time and was wondering which of the two 
components should I dispense with first?
Here are the amps I've been looking to audition, Icon Audio st40 mkiiim, Luxman 505ux, McIntosh Ma5200
and Prima Luna Dialogue Premium. As you can see there is a solid state in the bunch.
As for speakers, I'm interested in the Vandersteens 3a signature, the Sonus Faber Venere S, and the 
Wharfdale Jade 7. I know this topic has been brought before so I'll welcome some new and refreshing
ideas and comments! Thanks a bunch Audiogoners!

barbman
I own the Vandy 3a sigs and enjoy them immensely. I have no experience with the Definitive speakers, so I cannot give any comment to their sound
For me, I would consider upgrading the speakers first.
If you think you will go with Vandy's, I suggest moving to the McCormack amps and preamps as they mate with Vandersteen speakers nicely. They also can be upgraded by Steve McCormack, should you want, in the future.