So I've done a fair bit of backpacking before, but I've never owned much of my own gear. I've got a backpack (50L), a water filter, and a sleeping bag that needs to be replaced - that's about it. I'm planning on doing the JMT in early August, and since this will be the first of what I hope to be many serious backpacking ventures, I think I'd like to invest in some good gear. Here's what I'm thinking of getting:

-sleeping bag (0 degrees, comfortable as possible)
-tent (2 person, durable, easy, lightweight)
-stove (for the technologically inept)
-backpack (will 50L be big enough?)
-bear canister (but I may just rent one)

I've browsed zillions of stores for these items and feel a little overwhelmed by all the options. If you have recommendations for these, I'd love to hear them - especially if they're relatively inexpensive. I'm afraid I can't spend a ton.

Thanks!