I just used the Outpost Double hammock for the first time this weekend. $30 buys an 11 foot hammock, and the straps have buckles for adjustments instead of loops or whoopie slings. Set up is very easy, and the total package is relatively compact. The only thing I recommend adding is a structural ridgeline. It'd be even better of the carabiners were smaller and lighter.
For a tarp, I use a Paria 8x10 tarp ordered on Amazon. I turned it diagonally to handle blowing rain, and I sewed on LineLoc3 cord tensioners to ease setup and reduce cordage. I'm considering their 10x12 tarp for the upcoming stormy season, or a tarp with doors. 8x10 should be big enough if I hang the tarp low enough, but I like to hang it high so I have room to chill and enjoy the view while waiting for better weather.
My top quilt is from Enlightened Equipment. It can be a bit pricey, but I got mine in a group buy on Massdrop. It's very nice, although excessively wide if strictly used for hammocking.
My first bottom quilt is an Outdoor Vitals 20°F quilt ordered on Amazon. I love the length, width, price, and ease of use, but hate the weight and bulk. If I had planned further ahead, I would have bought a budget underquilt from Loco Libre or HammockGear. My second bottom quilt is a Costco converted Gemini quilt. It's compact and light, but I worry about the cords tangling. I don't know how they'd tangle, but it'd be an awful mess if they did.
Other bits that I'm liking so far are lots of micro biners. It seems like I always have lots of little things to hang. I'm also loving the Nite Ize Camjam XT. It's a strong tensioner with a biner, and it's awesome for quickly creating and breaking down a very taught tarp ridgeline and making adjustments when it starts to droop in cool damp weather. When car camping, I use a second one for a clothesline. Normally I'm against toys like this, but it works so well.
Eventually I'll get a better 3-season underquilt and hammock. For me "better" means lighter and more compact.
While the cottage vendors have better gear, I waited too late into the season to order most of my gear, and had to make do with what's on Amazon. If you can afford to wait 2-3 months, get your gear from a cottage vendor like Arrowhead, Loco Libre, Enlightened Equipment, HammockGear, Dutchware, and many other excellent vendors.