still lookin

would this be a good buy? I've pretty much resigned myself to 350 fps or so.
http://www.airsoftgi.com/product_info.php?cPath=154_156&products_id=1975

I like it!
But I have no clue what I'm saying so I'm not really helping...

all the fps on most of those guns was pretty much the same, so I was really just looking for something that was metal and looked cool (and was relatively cheap).

GET THE G&G or COMBAT MACHINE M4

The one you're looking at is good but Creed769 is right about the getting the CM M4. It is around the same FPS, but you do have to buy a battery with the Combat Machine.
Here's a link: http://www.airsoftgi.com/product_info.php?cPath=139_24_237&products_id=4587

yeah, and the cm's less expensive too. any suggestions on a good battery?

I'm not so sure about batteries but by looking around this one looks alright: http://www.airsoftgi.com/product_info.php?cPath=27_47&products_id=2995
Like I said, not so sure about batteries but I have heard that Intellect makes good ones. Hope it helps.

This battery was suggested to me when I wanted to get the CM M4 http://www.airsoftgi.com/product_info.php?cPath=27_47&products_id=3920

or you could go with this 8.4v

http://www.airsoftgi.com/product_info.php?cPath=27_46&products_id=3596

Micr0mac hit it just right; The 9.6v battery is the best bet for that M4.

You CAN go bigger, but then you run into the issues of it possibly not fitting, or having to cram wiring in everytime and so forth.

the 9.6 won't give me too high a rof right? cause I don't need to be spraying tons of bbs, I just want enough to keep the enemy's head down.

I don't mean to completely destroy the entire thread, but I would like to put this out there.

Echo 1 Full Metal MP5A4

Comes with two gb's, one for field and one for CQB. All you have to do is remove the stock, remove a pin near the magwell, and remove the LR. Tim from ASGI has one, and I've also considered purchasing one (and I don't even like AEGs!).

looks like an awesome gun, but I don't have that kind of cash to blow on airsoft.

Ah, I hear ya man. The prices keep getting higher and higher and the wallet gets thinner and thinner, haha.