#1
Can anyone recommend me an RG Series Ibanez, preferebly with an Edge bridge and within the $200-$500 price range?
#4
No RG's in that range are going to have an Edge, or any decent trems for that matter.

I say save up and get a Prestige RG, any of the Edge III Made-In-Indonesia budget models aren't worth it.
#5
Don't buy a cheap RG, it will have an edge III which i am sure you will come to hate, so look into a s series such as:

http://guitars.musiciansfriend.com/product/Ibanez-S470DXQM-Electric-Guitar?sku=519933

It's a bit out of your price range, but the tremolo will hold up much longer.

Or if you really want an RG look into the prestige series, because they do have edge pros, or ZR trems.
Gearz:
Squier classic vibe 50's strat, modded.
Dunlop 535q
Korg Pitchblack
Carvin X100B

Coming soon to a pedal board near you:
Analogman Sunface
Lovepedal E6
Area 51 wah
Skreddy Lunar Module
Malekko 616 Ekko