Mogwai

To me, receivers over sound cards any day. Way more options and benefits. Plus just having a receiver looks nice

Don't drop $300-400 on new audio equipment when you are using 558's, which aren't very demanding and no offense; half-ass Logitech speakers. Get new headphones first. Get a pair of DT990's or 770's if you want closed, AKG 701, or ATH-AD700x. Try your new headphones on your on-board if you then feel you need something more to power them then get a O2/ODAC combo, and FiiO E10, or if it were up to me a TubeMagic D1 Plus. Here are some links to some of the headphones DT990: http://www.amazon.com/beyerdynamic-990-Premium-250-Ohm/dp/B00193FT26 DT770: http://www.amazon.com/Beyerdynamic-770-PRO-250-ohms/dp/B0006NL5SM/ref=sr_1_1?s=electronics&ie=UTF8&qid=1380605042&sr=1-1&keywords=DT770 AKG 701: http://www.amazon.com/AKG-K-701-Headphones-White/dp/B000EBBJ6Y/ref=sr_1_1?s=electronics&ie=UTF8&qid=1380605059&sr=1-1&keywords=AKG+701 AD700x: http://www.amazon.com/Audio-Technica-ATH-AD700X-Audiophile-Open-Air-Headphones/dp/B009S332TQ

Haha, I would think the on-board on that MOBO would be efficient enough for some Logitech speakers, and a pair of 558's.

Out of those, I would go with the Fostex's or the M-Audio's.

+1 an amp is going to give you better sound, it's only going to amplify it obviously. a DAC will give you much better quality.

What headphones are you using, headphones are always number one priority and the Z87-G45 is supposed to have pretty nice on-board by the way. Don't buy anything till you try the on-board with whatever you are using.

+1, Get a nice pair of headphones first, use your on-board for now and if you decide later on that you want a little something extra to power them get a FiiO E10 or O2 amp.

+1 on the AT2020 Focusrite 2i2: http://www.amazon.com/Focusrite-2i2-USB-Recording-Interface/dp/B005OZE9SA/ref=sr_1_7?s=musical-instruments&ie=UTF8&qid=1380144780&sr=1-7 AT2020: http://www.amazon.com/Audio-Technica-AT2020-Condenser-Microphone/dp/B0006H92QK/ref=sr_1_15?s=musical-instruments&ie=UTF8&qid=1380144916&sr=1-

+1 JBL make some fantastic speakers, never heard any of their IEM's or Headphones though. JBL have a pretty good rep for making nice quality stuff so it should be a good choice.

I'm going for 100% complete and so far I'm at 72%, I need to do 3 more street races but only the first 2 are showing up at night and I already did both of them, does anyone know how to complete the other races. I saw some other people also having this same problem

Ignorance of the weak minded my friend, people will buy about anything if you pitch it well enough. I could come up with something stupid like underwater socks and still probably sell it to half of America as long I have a good catchy commercial and some half-ass advertisement.

I've noticed that haha, so I assumed they must be good

Just wondering how are those pioneer's? have you got to listen to them yet? And yea that's a no go on the modmic, so if you want a cheap alternative get a zalman clip-on.

Yep better quality at a fraction of the of the cost. But man if you want to look cool and fit in you got to get beats. haha

Haha , +1 for intimidation factor, maybe people will be scared to steal them now