Your mission, should you decide to accept it, is to help me spend my money most effectively. Recent developments, along with a healthy tax return has sprung some money for camera stuff. So many options, so little funds. The budget: $1000, give or take $100. The current equipment: Canon 20d, BG-E2 grip Canon 24mm 2.8 Canon 50mm 1.8 Canon 85mm 1.8 The wish list: Scenario A: Canon 70-200L f4, $450 used from Fred Miranda, (several going in the price range.) Canon 17-40L f4, $550 used from Fred Miranda. Scenario B: Canon 70-200L 2.8 $950 used from Fred Miranda. Scenario C: Canon 70-200L f4 IS, $1100, new from Adorama. Other worthy equipment to possibly consider: Canon 580EX Strobe lighting setup Or???