Need SOme Help Deciding....

[shizzon]

Ok so my 21st B-day is on the tenth and my family just came up to viit today to celebrate. Turns out my grandma gave me $500 in bonds when i was a young lad and i also got another $400 from my family. So basically i have this money thats burning a whole in my pocket and need some help deciding on what to blow it on!!!

Im looking for equipment for My Erevo, which currently has MMM/Teckno Neu 1515/1y. My current and only packs for this are my hard case polyquest 30c's for a total of 4s 5000mAH 30c. Im thinking that i want another set of batteries (either 5s or 6s) as well as a charger because my EOS 0606i isnt the fastest thing out there.

So i was thinking of this

Charger: Hyperion EOS 0610i Duo II = $300
I would need a power supply though, any suggestions?
Im guessing $80-100.

Batteries: either two of the 2500mAH 5s 25c packs from rc-monster in series for 5s 5000mAh 25, $120 each x 2 = $240

or a 6s setup using the new zippy flightmax 30c 3s 5000mah packs in parallel (these are out of stock however and i dont feel like waiting, but i could get 4 packs which means more runtime), $63 each x 4 = $250

Im also looking into getting CVD's (MIP 1665) as ive heard they stand up well to BL power. about $120

So each Setup costs roughly $800

OR

should i beef up my drivetrain with RCM hybrid diffs with the MIP cvd's and just get a Hyperion EOS 0610i Net and power supply with Two Zippy FLighmax 30c 5000mAH 3s.

Sorry for such a long post but i cant decide and need help!!!