I am pretty new too.... just started really playing in January. I did the same thing... bought a lot of discs, read these forums like a religion, and watched all the Youtube I could stand. A lot of the advice helped, and some of it hurt.... I have a tendency to over think... and nobody can totally think you through your own throw. I would imagine with your Ultimate time, you are already big time ahead. I have been getting consistently longer with my drives, but I am still lucky to break 220.... and most are consistently between 175 - 190.
In terms of discs...
As a fellow newbie... these are my favorites.
Discraft Elite Z Surge SS
I just picked this one up used.... I like it a lot. Lately I have seemed to loose a lot of control on my Valks.... which were my favorite before.... this one seems to be easier for me now.... but my form is changing all of the time too, as I practice, read, and hopefully improve.
Innova Champion Ed. Beast
This one too.... there was a local tournament here last weekend, and there were suddenly a ton of used discs at my local shop... so I checked them out. I got this one because it is supposed to be a close cousin to the Valk.... so far, it is good. Predictable, and ok distance.
Innova DX Cro 175g
I used to use this as my fairway approach fairly consistently. I have since changed to a Stingray, which I love.... but I still use the Cro for forehand flip type shots where I want it to fade to the right at the end of the throw.
Innova Star Dart 175g
This is my new far putt... approach disc. So far it is a bit unpredictable for me... but I like the feel, I just need to practice more.
Innova Champion Ed. Eagle
This disc I also just picked up.... I like it a lot... so far this and the Orc are kinda interchangeable, I am still trying to figure out which one I like the most. Nice distance and super straight.
Innova Champion Ed. Monarch 175g
This is the disc that I consistently throw the furthest. I really like it, and even though I get about 100' less than the average joe... it is still rather reliable for me. Like I said, my valks were my favorite for the bulk of my first month... but lately they have just been off.
Innova Champion Orc
This one is similar to the Eagle... but every now and then I throw it just right, and I surprise myself with it... so I keep it in the bag.
Innova DX Stingray 168g
This is my essential disc right now. I love it. it is super predictable... glides forever, and I use it just about every hole.... (since my drives are short).
Innova Champion Valkyrie 174g
This was my go to favorite for awhile... not sure why it is letting me down lately.
Innova DX Wraith 175g
I just stuck this one in the bag to test it comprable to the Surge SS.... I have a 148 g Wraith too that I like.
Quest Crossfire 170g
This is another new putter. I use it for close shots that are on flat terrain. I really like its feel... but it rolls like crazy, and the course that I play usually has a lot of pins on hills. So I don't use this one from further out.
Proline Rogue
Another used one that I just picked up. I really like it... can't get it out as far as the Monarch yet.. but it is close..... I have a feeling I might like this a lot with some more work.