"I just recently purchased an Amiga 2000 Rev 6.2 computer. I am looking to upgrade it. At the moment, it has Workbench 1.3, 1.3 ROM and I'm guessing Kickstart 1.3?"
Nice one! The 2000 is a nice machine that opens up some interesting expansion possibilities to you.
"1. Do I just need 3.1 ROM and Workbench 3.1 disks?"
You'll need a B2000 specific 3.1 ROM (try contacting Eyetech or Power Computing if in the UK) which needs to be installed before you can install OS3.1
It's a lid-off job that requires some careful manouevering of a chip extraction tool (or a pair of small screwdrivers hehe). I'm sure you know the drill by now
"Or, am I needing Kickstart 3.1 or is that the same as the 3.1 ROM chip? "
It's the same thing.
"Also, if I do upgrade, how and where could I find information about partioning, repartioning or upgrading 1.3 OS that is currently on hard drive? "
If you buy the 3.1 ROM/s and OS 3.1 disks together then you'll be able to install the new OS on top. I don't know much about the HDD card you're using, so I cannot comment on upgradeability or fitting of a CD ROM.
If you're fitting a CD ROM then you should really consider checking EBay or
www.amibench.org for an upgraded CPU card. The 7.14Mhz 68000 supplied with the B2000 isn't going to make the most out of OS3.1. You'll be needing extra memory too as AFAIK the B2000 came with only one megabyte as standard.
Good luck and don't forget to let us all know how you get on!
:-D