Hi there, PM me. I can help you with 100% of this.
In other news, I'd say that REALISTICALLY it's ideal to not buy a new comp for a bit yet. AMD is releasing 8XXXM (8970M is already out) and Nvidia is releasing 7XXM (750M is already out) which means current tech is outdated. Ideally, you should aim to spend $2000 on a great laptop and $2000 on a great desktop, because spending $4000 on a non desktop machine is pretty silly because the performance gains at those prices on a laptop are awfully negligible, even if you invest in a dual GPU overclocked liquid cooler M18X, somebody with a $2000 laptop will have roughly the same performance, but you can make up for the raw need of performance with a desktop at home for $2000, where dual GPU systems are much more affordable and noticeable. Laptops are also 95% non upgradeableable as the two thing you can upgrade usually are storage medium (SSD/HDD/Size/Speed etc.) and RAM, both of which (other than an SSD) offer basically nothing in terms of raw performance boost unless you really, really need it.
If you need a new computer right now, and you're interested in a $2000 desktop, buy in a GTX 780 and wait for Intel Haswell next month, as that'll be both affordable on $2000 and it's new tech, so it's not going to need upgrading for a while yet.