To be exact i'm going to L.A for a few days, then to L.V for 2 nights, then to San Fran for a week. I hope to pick up alot of spuddiung supplies with the $700USD I have for my budget

I leave Thursday around 4pm, so thats 9am Pacific time I believe(+7).
Few questions I want to ask, mainly for noname or frank as I believe they live in Cali
1) how much is it on average for a 1" sprinkler valve and the materials required to mod it?(blow gun, 1/4" brass nipple)
2) is it possible to buy a QEV from a physical store(not online)? I have the cash so I can pay big.
3) Where's the best place to go for 3-4" fittings? It'd be best if it was fairly common not like some stand-alone plumbing merchant.
4) Ipod, I got mine stolen in Rome earlier this year and need prefably a 80gb video, would duty free at the airport be the best place to get them cheap or is there a better place to go?
That's all my questions for now, I may think of a few more soon.
Thanks.