1) First, download AVG PC Utilities TuneUp 2011. http://free.avg.com/us-en/download-avg-pctuneup
2) Then, use this code to register: 000025-TZUG16-4D91MX-2M54JV-U6B352-MBZZ5Y-P59QMC-2FJ2V6-XRZG6R-5EU4PG-CB39X5
3) Make sure your GPU (Graphics Processing Unit) driver(s) is(are) up-to-date. Download and install any updates for your GPU.
4) Download and install any updates for your OS (Operating System).
5) Download and install any updates to anything and everything you have on your computer, really.
6) Delete your internet cache and temporary internet files (using your web browser).
7) Remove as many files and shortcuts from your desktop and put them in proper locations such as "My Documents".
8) Watch this video and use AVG PC TuneUp 2011 as advised:
http://www.twitch.tv/testyvenom/b/300540203
9) Download the SWTOR Beta Client as soon as you can. That will probably be Tuesday or Wednesday this week. The download will probably be available here: http://www.swtor.com/tester
10) Make sure to give your modem and router a break about 1 hour before you are able to login to the SWTOR Beta servers. Let them both cool down for about 5-10 minutes. It will be a strain for them to maintain a connection to the SWTOR servers. Also, anything that connects to the modem/router should be turned off during this process. After the 5-10 minutes are up, turn your modem and router back on (in that order) and wait at least 2 minutes before turning on anything that connects to them. Turn on your computers and other devices one at a time.
11) Be sure to reboot (Shut Down and Start Up, do not just Restart) your computer(s) at least 1 hour before you are able to login to the SWTOR Beta servers. Let your computer(s) sit, while turned off, for about 2-5 minutes (ensure that you hear no noise from the computer(s)). Turn your computer(s) back on (one at a time if you have multiple). Before logging in to the SWTOR Beta, disable/exit anything that does not need to be running (i.e. Origin, Steam, a Web Browser, Hamachi, etc...).
12) Login to the SWTOR Beta and have fun.
Do all of these in the order presented.