Rapparee, 'The Tetons' look mouthwateringly tempting. The highest peak in Snowdonia is 'Snowdon' at just over 3000' & in Scotland, 'Ben Nevis' rises to just over 4000', so 'The Tetons' would require a different approach. When I was climbing regularly, the highest difficulty grade I achieved was E2 (for a single pitch climb). Are 'The Tetons' considered technical or friendly? All of this is completely academic, because I climb only in my dreams! Nevertheless, I can't forget the satisfaction of safely gaining a summit...& then having to prepare for the inevitable decent!
             Thanks for stirring up many exciting memories,
                                                                                           Nigel.