i think you're doing your 'bro proud compared to where you started. good job with the vid card and everything
however, don't be taken in by the Raidmax, its led, and modular design. you cannot get a truly quality 530w modular psu for $44, much less $29. newegg user reviews aside (which aren't exactly sterling for this unit in some cases) i like this choice instead:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371006
430w is plenty and it would prolly outperform the Raidmax under heavy load anyway. its not fancy and not modular. but if you look under its specificattions list you will see this:
Dual 12V outputs: 12V2 for Motherboard and peripherals; 12V1 for processor
Industrial-grade protection circuitry prevents damage resulting from short circuits, power overloads, over voltage, and under voltage
80 Plus Certified is the newest standard in power supply efficiency.
At least 80% high efficiency at any load, will save you money on your electrical bill.
Reduce heat in your computer's system.
Universal input
PF value up to 99%
and if you look under the Raidmax you will see this:
Dual 12V output circuits provide added system stability
Huge 135mm silent blue LED fan
Durable black stain finish
Hexflo honey comb cutouts for maximum airflow
High grade black mesh wrapped cabling
Modular cables
Power Material: Stained Black SECC Steel
so i think you can see where Antec put their money (IN the actual power supply) and where Raidmax put theirs. and while the Raidmax claims to be "up to 80% efficient" the Antec is "Certified 80%" at any load. which means its not just a claim, its official for its power delivery range
plus the Antec is the same price and has a one year longer warranty. you never know with these things. the Raidmax could last three years and the Antec could punk out in one. but its more likely to be vice versa
when it comes to psu's its better to start smart then to end dumb imo. with the Antec you have a lot less chance of ending dumb
yeah she's not pretty but she's good
cuz im sure one 4850 is good for right now 
