You'd be amazed at what a laptop can do these days... In 1998, you needed thousands of dollars worth of gear... now I do most everything on a 5 year old Macbook Pro. Doesn't matter if it's Mac/PC btw -- not trying to start that war... There's great software on both. A free piece of software (haven't used it- but I hear great things) is Blender.... it's free, so you can see if it will work on your laptop- and there's no risk of wasting $ on something you can't use, because it's free.

I don't know that I have a specific style - I vary my stuff up all the time - here's the last few pieces (these open up in FB albums currently):
http://TheArtOfOri.com/year8
http://TheArtOfOri.com/year7
http://TheArtOfOri.com/year6
http://TheArtOfOri.com/year5
http://TheArtOfOri.com/year4
http://TheArtOfOri.com/year3
http://TheArtOfOri.com/year2
http://TheArtOfOri.com/year1