LootDrop and FTC are great addons to be sure!
As for other stuff. I use a standalone app called Minion (from ZAM/EsoUi) to install and update addons. I’ve been using it for a couple of days and it works great.
As for specific addons, I installed the Wykkyd Framework (I think that’s how you spell it). It’s required to use his other addons, but one thing the addon gives you is a “status bar” type of info display that shows your level, current xp/xp to level, gold, bag space, soul gems, time of day, zone name, if you need to feed your horse, and other stuff. You can drag it to where you want it. So far I really like it.
I also have some sort of Crafting Timer that puts a window on the screen when you’re researching stuff so you can tell when you can go back to the table and research the next thing.
I’ve got Wykkyd’s Outfitter that lets you change outfits (haven’t used it yet, but it seems like it’d be useful).
Also something called XTimestamp that puts a timestamp in front of your chat messages.
I know this will sort of seem weaselly, but it doesn’t matter a whole lot what race you play - so pick the one that you want, or that seems to have the sort of advantages you think would help. I have heard Templars have an issue with mana regen, so maybe you want a class that has a racial ability to boost mana regen? Don’t know, that was just off the top of my head. As far as class goes, going to the forums at Tamriel Foundry will both help and confuse you. I believe that I’ve seen Sorcerer, Nightblade, and Templar builds that all can heal. Templar has the advantage of having a spell line devoted to healing, but I am sure that doesn’t mean only Templars can heal. There are pros and cons to using each of the classes. And since any class can use a Resto staff for heals, and any class can wear any type of armor, you can really build a healer type to be exactly the way you want it to be. So if you’re worried about getting killed in PVP you could pick a Sorcerer, boost his mana regen, outfit him in heavy armor and make him a battle healer (not sure exactly how well that’d work but you COULD do it, that’s the point!).
Since the game is new there’s no obvious “best build” for anything, so anyone who tells you “oh you have to be xyz to be a healer or it won’t work” is full of it. So I’d say if Templar sounds good, try it. It should work fine. However, that’s not the only choice you can make.
I have only done Ebonhart Faction but most mobs are very easy to kill - except once in a while you have to kill an elite mob. And many build can do it, but a random joe who happens along to it, and who only has random armor and a random weapon might get killed (same thing happened to me, got killed by a level 4 bat!). In that case I just get better gear, level up once or so, then go back and stomp it.