Bankroll and planning a Vegas Trip

[sweeng8]

Hi guys,
this is probably asked here a lot but Im planning a vegas/poker holiday for next year and would like some general advice. I also have a couple of questions some of you might be able to answer:

I usually play 1/2 and 2/4 NLH online with a bankroll usually between $5k and $10k. What limits should I be looking to play at Vegas, and with what kind of bankroll? I have heard games are supersoft compared to online. I want to spend a lot of time at the tables but also have a girlfriend to amuse. Im thinking about $3k as a seperate poker roll to play for a week. I dont really think usual bankroll rules apply as im on holiday but is this about realistic? Is it worth spending more to play at higher limits?
secondly, what kind of rake do you get at Vegas tables. I have heard the rake at 1/2 is horrible, and its worth playing higher limits to avoid such a harsh rake. Is this true?

Besides poker and casino spending, what kind of money shall I be looking to take for a week? I am from Scotland so I imagine besides nightclubs, costs will be relatively cheap. Any other suggestions, help, or references to websites would be greatly appreciated.
Thanks