Its very cool that you are looking at this!
I had a quick look at Gamesalad and it looks like a pretty neat idea. What you need to be aware of is cost : $300 per year. It doesn’t say whether you can buy it for 12 months, build your game and then distribute/sell your game without renewing, or whether you’re tied to $300 per year as long as your game is alive. Also, the content looked quite pricey ($10-$30 per product) and I couldn’t find anything on what default content is included with the app. So you may need to fork out an additional $50-$100 for content.
HTML5 should be your preferred technology, as both Microsoft and Apple have (quite surprisingly) practically ditched other technologies (in particular, Adobe Flash) in favour of HTML5 for front end apps + games. I’m sure many people will have different emotional views on this, but if you read up on it you will see that it is one of the few moments in computer history where we’ve had clear direction from the big boys on technology direction.
Another option to consider, is to hire someone online through a sourcing website to do the programming for you (it could cost you only $50-$300 depending on what you want). You come up with the game concept, but just make sure you go through a reliable site and have a clause on IP ownership.
Good luck, it sounds like fun