I have been a member since my first Pentax, the K10D. That is now sold to my little sister. Currently I've got the K7 and the K5.
Went for Pentax do the the weather sealing combined with my arctic location.
Of lenses I got
Pentax-DA* 16-50mm F2.8 ED AL [IF] SDM
Pentax-DA 18-55mm F3.5-5.6 AL WR (the K5 body was cheaper with this kit lens)
Pentax-FA 50mm F1.4
Sigma 105mm F2.8 EX DG Macro
Sigma 70-200mm F2.8 EX DG APO Macro HSM II
Sigma 50-500mm F4.5-6.3 OS HSM
LensBaby Composer Pro w/sweet 35, pinhole, single glass and plastic optics