Hey everyone! I posted awhile back on whether I should get a T2i or D5000, and so I decided to get the T2i .. When I get the camera I'll probably take portraits, landscape/architecture, night, and macro pictures.. Anyways, I was searching around for some lenses to take on my trip to Japan in October and I was thinking of getting the 18-55mm kit lens, 50mm 1.8, and the Opteka HD2 0.20X fish eye attachment.. But my friend who is into photography suggested for me to get the 'Sigma CA17-70OS 17-70mm F2.8-4 DC Macro OS HSM' and if I did get this lens I would probably also buy the 50mm 1.8 lens too. I'm still a total noob at photography and I was wondering if this lens would be a better choice to take rather than the lenses I originally wanted to take. Also (this is probably a dumb question but just to make sure..) if I do get the 50mm lens I cannot put the fish eye attachment on it yeah? And would buying the 50mm be a waste of time and money bringing it on my trip? And one last question .. has anyone bought anything from Crispdeals.com or Newegg.com? I'm probably gonna get the T2i body from one of them.