First up is a $9.99 special that gives you the full game client. Gameplay time will cost you extra, though, so assuming you go with the standard monthly fee, you're looking at around 25 bucks for full access to Telara.
Next up is the trial upgrade collector's edition special, which will set you back $16.99. You get the full client per above as well as a tartagon mount, a collector's satchel, and a bogling wastrel pet. Both deals are digital only, so if your dad, husband, or baby's daddy wants a box, you'll need to check out the brick and mortar or online retailers listed on Trion's website.