I Think I Made A Breakthrough. Also, Anyone Have Recommendations for Nikon-Compatible Lenses?

[Stevenmarc]

2. I haven't had a huge issue

with third party lenses but I tend to like Sigma better than Tamron simply because Sigma feels better machined and Tamron feels a tad plastic'y to me.

Another alternative is to check the used department of places like B&H Photo for Nikon glass. I've got a few great bargains, they are checked out really well and they stand by their product.

Finally if you ever are in the market for a higher end lens I would recommended that you rent it first, it's a cheap way of getting a real world test, and another alternative to this is, and a great reason to join a camera club, is that someone usually has the lens you are considering and you can usually get someone to let you use theirs especially if there's a lunch in it for them.