hey, you should add Goodings Media Adult hosting to your list ;)
http://www.goodingsmedia.com/index.php?page=hosting
Shared plans starting from £2.49 but Im guessing by your needs that Web host III plan will suit well, and only £7.49
If you need to upgrade thats no problem too, so your hosting will grow with your sites
Great support, great uptime, honest and no bullshit.
What more do you want from your adult host?
http://www.goodingsmedia.com