Just rented Dragon Age and the absolute last thing I want to do is make a lousy character. I figured this was the place to ask to get some much needed advice.
 
Can I munchkin out Repair, Perception, Agility  and Energy Weapons and just spam plasma death the whole game?

what the hell are you smoking

" Just rented Dragon Age and the absolute last thing I want to do is make a lousy character. I figured this was the place to ask to get some much needed advice.  Can I munchkin out Repair, Perception, Agility  and Energy Weapons and just spam plasma death the whole game? "

I just want to make a decent rogue or warrior and not get my ass kicked constantly because I put experience points in the wrong places. That's all.

Do you have ANY idea on what this game is about...?

" Do you have ANY idea on what this game is about...? "

Ok, I loled.

Ok. Made a human rogue. Just leveled for the 1st time.  Focusing on dual weapons, coercion and Below The Belt. Am I doing it right?

" Ok. Made a human rogue. Just leveled for the 1st time.  Focusing on dual weapons, coercion and Below The Belt. Am I doing it right? "

Uhhh, what?

Rouge:
Dexterity and Cunning
 
Warrior: 
Strength and Constitution or Dexterity, depending on what type of Warrior you want to play.
 
Although, you are not naming anything specific to Dragon Age, so I don't really know if I'm actually helping...

I spent hours and hours yesterday pondering and considering every last thing before I remembered my cardinal rule of making complicated ass characters in RPGs, which can be summed up as "Fuck it".  Any character I make will be fine since I'm only playing on normal, so I opted for a dwarf, who I gave a sweet beard, a dual-sword specialty, and the name of "And my axe".  All that took about 3 minutes and I'm enjoying this character a lot.  Side note:  I just got a dog as a party member from a quest, which I promptly named "And my dog".

Just put points in what YOU feel is cool, then on your second play through you can use what you learned to make a god-like character.

" Just put points in what YOU feel is cool, then on your second play through you can use what you learned to make a god-like character. "

Do a barrel roll

I see what you did there. Making it look like you're confusing Dragon Age with Fallout 3. Very witty. In fact, it's so clever I can hardly get my head around the comical genius. So well done it hurts. 

use bombs wisely

Definitely sweep the leg.

V.A.T.S. IS YOUR BEST FRIEND ;)
seriously tho why did you choose a rogue that's like the hardest char to play and he needs like insane amount of macros n shit i feel like mages are the easiest and most fun