Well done you seem to be well hooked on homebrew already.
Your OG might be low because of low efficiency or because you mashed at a higher temperature or some less likely reasons like old grain or large milling size. This could affect the body, alcohol and head retention properties and will change the beer style the recipe was aiming for but dont stress over it now it will still be good beer and thats most important.
A lot of us use this burner:
http://mybroadband.co.za/vb/showthr...y-own-beer?p=10892367&viewfull=1#post10892367
I typically leave my homebrew in the primary for about 10 days as I dont use a secondary then keg it. IMO wait at least 2 days after bubbling stopped and you tested your FG is in range of what it should be before bottling.
I would not mix the priming sugar into the primary fermenter the yeast, proteins and all the other gunk will go back into suspension and be a pain I would just buy a food grade plastic bucket from a plastic shop they are pretty cheap. Or take out 2 or so litres and mix the priming sugar with that sterilise in a pot and then split that between all the bottles.
Sterilise everything as best you can before bottling.
Remember when bottling oxygen is the enemy so stir and splash as little as possible in fact there is only one occasion in the whole brewing process when you want to add oxygen and that is just before adding the yeast to the primary fermenter.
Once bottled store the full sealed bottles at the same temperature you fermented at for at least 2 weeks so that the priming sugar can be converted and you get carbonation once you are happy with carbonation levels you can move it to the fridge or other cool place for long term storage.Store them upright so that the yeast can settle to the bottom and when pouring your beer dont pour the settled yeast into the glass.
Thats my opinion on most of it hopefully the other guys chip in their 2c as well.