Replying to Purchase Advice Please

currently i have a kit lens and a 50. i am looking to upgrade my glass in the near future. As i am a student i don't have a ton of cash to spend.

 here are my options:
1) upgrade kit lens to tamron probably soon after christmas, then purchase telephoto later on
or
2) save up a while and purchase a 70-200, then tamron later on

things to consider:
1) i currently live on the east coast and want to start filming some surfing. telephoto imperative here
2) i feel like i am always being let down by my kit lens and its really pissing me off.
3) not sure if this matters but probably will not be filming much skiing this winter

what order would/did you buy your glass in?

thanks