Give the software a try as you go along Guy, I know the new Form Builder is especially difficult for some people that have absolutely no knowledge of how things are setup, but... trust me when I say that playing around with it a bit is extremely helpful and it's pretty intuitive.
One of the main things about the program is positioning, and if you can master how that works, you have most of it beaten. The great thing about that is that you can see real time what happens when you change a setting by just altering the numbers, then click inside the preview area to make sure the change has taken effect. It's almost foolproof and can save you hours later if you take a little time to get used to it.
The next hard part is altering the reply and response messages, that we had to do ourselves in the old version too, but it wasn't quite so hard as this one having to do the HTML. Many here will help with that if you ask though *hint hint*
I haven't looked at the S-Drive Photo Gallery setup yet, I know shame on me lol. But I've heard good things about it, and it may be the way to go for you if you don't want to learn how to do other things. There are other softwares out there that are much more handy if you're dealing with your own server and don't want the S-Drive tie in, but either way it's all doable things, and some out there are as easy as the Photo Gallery is to use. Just depends on what you're after. We're all hoping that CC will do a great JQuery Gallery some day!
Basically just do what you need to, take a little time and explore the new softwares, they are truly powerful and everyone here is pretty helpful with it if you get stuck so there's no need to sit and frustrate yourself over something, just ask
Good luck!