Travis, look into the Tamron 17-50/2.8 and an 85/1.8, 50/1.4 or Sigma 30/1.4. The 17-40 will focus quicker than the Tamron but it won't offer f/2.8 and it's not as sharp. If you want the best all around IQ/performance sub the Tamron for the 17-55 and wait until you can afford a prime--don't blow your whole load all at once.