After doing a lot of reading here on the forum I took the leap. Now I have my 5 accounts, the EVGA GeForce GTX 560 2GB heavily recommended in a hardware thread, and dealt with customer service locking my accounts when they thought someone had hacked my account and started spamming out invites. (I invited 4 new accounts so I could get the 300% exp bonus.) Oh, and ISBoxer.

Now I have three groups to play around with.
1 Pally + 4 Shaman
5 Hunters (1 for each alliance race that has hunters)
3 Mage

I started with a 3 mage group to test things and decided to give each mage a different specialty. It made sense at the time. One with frost to slow the advancing mob with the other two have improved damage to take them down. Logically it might also help with mobs that have resistance to a line. After playing a while I am afraid that anything gained may be lost with variances in timing. Especially with the arcane line.

Now for the question. As a general rule should all characters have the same spec? Is it dependent on class? For classes like Shaman and Druid is it better to level up with one spec and then branch out at a higher level?