In reply to Oo:
Personally I think the Vipers swing better in to ice than quarks. the handles on the quarks are further forward (or conversely if you hold a viper and a quark in the same way upright the viper pick will be nearer to the ice). This means when using my quarks I need to flick my wrist quite unnaturally (for me) just before the pick hits the ice to bring the pick forward to stop the handle hitting the ice as the pick goes in. The Apex are more similar to the quarks than the vipers in geometry.
With regards to your question, I'd get a pair of tech axes now to go with your cirques, you could either go with second hand and then sell them in a few years time when you upgrade or go straight for the real deal. Option 1 is lower risk on the off chance you never really get in to winter climbing. Option 2 means if only one of you go climbing in future you can climb on a pair of really nice axes and you'll be learning on something that you intend to keep (faster learning curve) (or the leader could use the 'good' axes)
I personally would only go winter climbing using 1 axe to lead on easy (grade I) snow climbs in good neve condition, anything else I much prefer 2. Even on grade I you may get a cornice that would be much better suited to 2 axes.
Stevo