Just getting started

Hey there guy! I have been wanting to make the switch to a high end gaming PC for years now. and for multiple reason from gaming to electronic music production, even coding and programming. At the current moment i have this (http://www.toshiba.com/us/computers/laptops/satellite/C50/C55D-A5240NR) And this gets me from point A to point B. over all im very limited on what i can do, with what i do. I've been looking around at hard ware and i stumbled across this on newegg (http://www.newegg.com/DIY-PC-SuperCombos/PromotionStore/ID-33) So i lossed it and started to look around and found this guy (http://www.newegg.com/Product/ComboBundleDetails.aspx?ItemList=Combo.2144886). So this brings me to my question, should i go with something like this or should i go piece by piece. If any one puts something like a list together of good deals and what not im a nvidia guy. thank you guys! (sorry for all the links)