i have an REI Quarterdome UL. sub 4 pounds dbl wall tent i'm really happy with. might be a little cramped for 6'2" though. the Big Agnes seedhouse Ultralight is nice and gave the REI a run for my money.
the other option i'd consider is a good bivy sack and a silnyl tarp. lots of versatility and ultralight. Integral Designs make the nicest tarps (i think).