Yamaha DTXpress/DTXplorer/DTXtreme

hello all... i've had my dtxpress2 for about two months now. i 
think that its the greatest $1000 that i have ever spent. now that i 
have fully explored the kit, i would like to experiment with 
upgrades. i am thinking that i would like to upgrade the snare to 
something a bit more realistic feeling (compared to an acoustic 
kit). ideally, i would like to get a real sized snare... one with a 
tunable mesh head. like the ones on the upper level yamaha 
kits. has anyone had any experience with a snare upgrade? any 
recomendations? the pintech stuff looks pretty nifty... how does it 
cooperate with the dtxpress2's brain? another option would be 
using an acoustic snare with a silent mesh head and an 
acoustic drum trigger. has anyone tried that? 
thanks in advance for the input...