I wanted to pick up a eq soon to really fine tune my system i was thinking of like a 5 or 7 band with sub level, anyone know of any good 1/2 din eq's?

The real question is what band are you having an issue with. If you buy an eq that doesn't cover that range it won't help at all, and for a 5 band to do it will require some real adjustability.

I was having trouble tunning the lower end on my system

First things first, address the box and the way you have the midbass drivers mounted. The install is always the first place to make improvements only after you have conquered those should you start to eq.

alright for the low end i have 2 six inch passive bazookas and for the mid range to high end i have Rockford power T162c's 6 inch with clarion tweets. Powering everything i have a Alpine Mrp-F250, the rear channels are powering the bazookas on low pass with bass boost on and the front channels are powering the door speakers. All of this is in a single cab toyota tacoma, I will try to get pics up sometime

What is the issue with it, what does not sound right? Are you using the amp crossover between mid and sub then and what is it set to....and what xover for the tweeters to mid?

all i wanted was to just get an eq, there's really no probs with it i just thought i might be able to get better sq with and eq.

If you get one you will need a quality one like audiocontrol maybe alpine/etc. Cheap ones will add noise and/or degrade SQ. You can tell if you crank it up and it will distort much sooner with it inline. I am using an alpine g190 right now and I'm happy with it. It has a parametric for the sub and think three higher eq controls I don't use much. Also has 2 way crossover and sub gain, plus a fader if you need that. The parametric is great, you can boost or cut a band or frequency and adjust how wide. So you can boost say 35Hz and under if your sub is too tight...or boost midbass at around 150 like I am doing now...or cut 100Hz...whatever you need to do. I have not bypassed it to test it though, I went by recommendations for it. System seems to be on par with a nak I had in there before or close but I changed amps too. It does get funny at top end of output in the highs but I'm guessing it is my amp, with a bad eq in my experience it slowly distorts at high output. Or you can get a HU with that stuff in it, what I don't like is you can't fiddle with it while driving...I can just grab a knob and change it easily. But likely I will at some point for t/a and dsp/etc. I would stress whatever you get go for quality or don't bother unless it is dirt cheap so you can bail on it easily.

Also M5 is correct it is better to mod your install than to eq...my best systems had no eq just crossover and gains did the trick.

all i wanted was to just get an eq, there's really no probs with it i just thought i might be able to get better sq with and eq.

First you should maximize what you have if you are after SQ. Step 1, turn off the bass boost. Step 2, deaden. And of course, tell us what aspect you'd like to improve. All you have said so far is bottom end, but considering you are using a bazooka tube with bass boost I am not surprised you aren't happy with it.