My way is just the three bikes, but with loads of forks, bits in the shed,etc. that get swapped around to satisfy the urge to tinker : 1. 1991 Salsa Ala Carte - currently singlespeed ( gets your legs going !), 2. Salsa Moto Rapido ( fast XC ) 3. Santa Cruz Heckler ( Wales trail centre weekend fun). That's all you need. But it's great to build, change etc. Especially if you do it it the kitchen or living room whilst you're wife moans about how much time you spend on ' I S**g my bike .com. As she lovingly refers to this site !!