Samsung Behold 2 :: Email Accounts / Contact Management And More

First, I'm sure some or all of these have been discussed in some way somewhere, but i've been searching and just haven't found any clear answers (probably because i'm a bad "searcher" not because they are not there)I COULD REALLY USE SOME UP TO DATE INFO ON THE FOLLOWING TOPICS: I just bought a Behold II and have been thoroughly frustrated by the following, any help is greatly appreciated:

1. Gmail - Like a lot of people I have several gmail accounts and use all of them very regularly for various reasons (business, personal, little league, etc.) With my blackberry and gmail app i was able to easily log in and out of all these accounts and stay on top of everything. Now I appear to be stuck with the first account i logged into/setup with no means of logging out and getting into another. I understand (now) that much of the OS revolves around syncing everything for productivity, but this is a REALLY BIG problem for me. If I can only use one email account this phone is definitely going back immediately. Is there a means of doing this? 1a. I really don't like the idea of anybody being able to pick up my phone and be able to immediately go through my email. If i can't log out how can i at least protect the email from access by others without having to set a password or sequence EVERY time i pick up and use the phone?

2. Without asking me, after logging into the afore mentioned gmail account the phone took all the contact information from that account and loaded it into CONTACTS. Because it's an account that i use for general use there was a lot of spam in there and various other email addresses that i don't care about and it grabbed them ALL - EVERYTHING. So now i have thousands of contacts that are just email addresses for every thing and everybody that i've ever communicated with over that email account. How can i get rid of all of these and make sure this doesn't happen again.

3. I had all my contancts on my blackberry stored on my SIM card, which is where i'd like them to stay, but it appears that contacts stored to SIM can only have one phone number attached to them so i can't add additional information like additional phone numbers, email addresses, notes, bday information, etc. Is this correct? do i have to copy all of these to the phone memory in order to use these contacts properly and take advantage of all the features? Again, i'm very sorry if i'm rehashing old wounds here, i'm just so thoroughly frustrated and since i run my business from this phone it's hurting me tremendously right now. If i need to return this and go back to blackberry i need to do it soon so i can get back to being productive.