Originally posted by ninemm
1. SDHC Card (I have a 4GB class 2, but figure I need to upgrade to a class 6?)
2. Lens Cleaning Kit - Any recommendations?
3. Tri-Pod/Mono Pod(?) - I want to take some long exposures.
4. Camera Backpack - Thinking Kata Owl-272
5. More Eneloops
6. Filters? - ND/CP perhaps
7. PP Software - Aperture 3 maybe
You've gotten good feedback so far so most anything I would add would be somewhat repetative, but for what it's worth I would skip most of what's on the list for now until you've had a chance to play around with what you have.
1. I don't think you'll see much benefit from a faster card at this point. If at some point you upgrade to a newer DSLR, especially one with video, you'll need a faster card, but for now you should be fine.
2. This is a fairly inexpensive item, although as someone pointed out a good blower might be your better bet for cleaning lenses. I've actually never cleaned my sensor so I wouldn't even know how to advise you there.
3. You can probably hold off on the tripod unless you already know you have a need for one right away. That's not to say you shouldn't eventually get one, but a decent one will cost you a little bit and it's not something you'll want to have to replace because you bought a cheap/unstable one just to fit your budget.
4. As other have pointed out, if you only have one body and one lens, you probably don't need a backpack at this point. If you want one that's a different story. Either way, you're probably best off trying to find somewhere local to buy one so that you can see them in person as it's hard (for me at least) to shop for bags without seeing them in person.
5. Can't go wrong with more batteries. Even if you don't need them right away, you will at some point for a flash. In the meantime, you can use them just about anywhere else. I have several sets of AA and AAA hybrids that I used in flashlights, remotes and other stuff around the house.
6. Never been a filter guy, but you might find a CPL useful if you shoot outdoors a lot.
7. You can probably hold off here too for a little while. In the meantime, you could download a trial of Lightroom to see how you like it and if you think it would be worthwhile to buy.
As others have pointed out, a flash might also be something you'd want to add to the list and consider. A decent flash you can swivel and bounce off the walls and ceiling can help out a ton with indoor photographs. It was actually the first thing I bought after my first DSLR and lens.