Lots of great posts, but as a first time mommy (DS is 1 y 2 wk old) I got lots of advice too.
So you're due in the spring which puts you at 2nd trimester?......
is the time to....
-travel transoceanic. If you ever wanted to kiss your wife on the top of Eiffel tower (alone), sample wines in the vineyards of tuscany, roam the streets of Bangladesh...DO IT NOW!
-eat at any non-baby friendly restaurant.
-take any car trips you have EVER wanted to. Our DS hated his car seat until just recently.
-Work on any hobbies that require two hands and long stretches of time.
Clean and organize. Declutter. Your wife will want to wash the baseboards and will scrub down the refrigerator 3 times before the baby comes. That is okay and your job will be to give her lots of massages.
As PP said, I would hold off on buying most things as long as possible.
I noticed that the closer our due date got, the number of gifts grew exponentially. Since this is your first, lotsa people will give you first baby gifts. My dad found a diaper genie in excellent condition on the curb.
Things I found useful that we bought: rectal thermometer, a bulb nose sucker thingie, baby nail clippers, pretty painted wooden hangers, batteries for camera etc.
We cloth diaper (and cloth wipies) and also EC (elimination communication).
Initially we used disposables, but switched to cloth when I felt I had more energy.
R these not the cutest things or what??
If you sew, then you can DIY and use yummy organic bamboo and cotton velour.
Re: baby food, DS refused the jarred stuff and would only eat what we ate. We tried every flavor of organic stuff. Would rec just get a couple of jars and follow what the kid wants.
Keep a journal. Don't forget to get hand/footprints early (like we did) and take lots of showing how small baby is pictures...like in your hands, comparing finger and feet size.
Enjoy! A wonderful journey awaits you!