Nquest is up and working just fine. You can also get clearfont2 which will allow you to change the text size and in game fonts.

There is carbonite which is a quest tracker that is great. It also has a an in game quest tracker that you can resize but I'm not sure if it affects the font. Its 14 bucks for the year if you want to buy it There is a free version also. You can also get lightheaded db which is another great addon to help with questing.

These addons can be found at curse, wowace, wowinterface,com. Also if you go to curse and put in quest,font,map you can find other addons that will help. Insomniax is a compolation that comes with some of the addons I mentioned but is a whole ui on its own.