Ya when i was going to buy a house i saw Ysolda, i tired before that to marry Arela or whatever her name is from the companions but it wont let me since im part of them. So i just married her
You actually have to do the Companion quests to be able to marry Aela the Huntress. Not sure being a part of them would be a problem.
I also married Ysolda. Convenent since she was near my first house anyway in Whiterun. I also wanted to update her clothing. I found some Fine Clothing in some loot and saved it to give to her, but there is no option to trade items with her.
Also in Whiterun I can sleep with her and then run right next door and use the smith while my lovers bonus is active. Smith skills just skyrocketed.
100 gold per day (which saves up if I don't collect it) and a free meal each day. Can't really complain at all, other than I would like to give her some nicer clothing. Since I'm on the PC I'm sure the mods to improve her looks (and clothing) are on their way.
Also I can still adventure with Lydia or Aela or anyone else I want.