Best packages to purchase for Wizzy, Priest & Rgr?

Brand new to the game (days) and REALLY enjoying it. Much more so than the MANY other MMO's I've played and I've played most all of em.
Would appreciate some knowledge and guidance from you experts!

I've kinda decided I'd like to play the 3 classes mentioned. Are any of the many packages offered of any real aid long term?

Which ones and why, please? I should note I'm an older gamer and VERY casual! Will be basically a soloer.

Any advice GREATLY appreciated!