1: What accelerator cards are worth being on the lookout for ? Mostly wondering what was compatible with the 2000, and which could be fitted without too much messing around.
I have a GVP 68030 board that I'm happy with. It has extra memory and a scsi controller. It's a great combo. It gets you access to cd/dvd drives and hard disks, both internal and external.
2: The machine I am getting has 2.0 ROM's. Will this run workbench 3.0 or should I look for 2.0 instead?
I believe you can run older workbenches on newer roms, but not the other way around. You might want to consider a rom switcher though for older games.
3: What would be the simplest way of getting a hard drive set up for this thing?
If you end up with a memory board instead of an accelerator, you might want to consider a buddha board from individual computers. You can put an IDE to compact flash adapter on it and have a CF hard drive. It works great and it's fast. I believe it also has a rom switcher in flash.
Other than that, I'd suggest an A2091. The hard drive attaches right to the card. They made 1000s of them so they're cheap. And you can still attach an internal cd/dvd drive and keep both floppies since the drive is on the card. There's an external scsi connector also.
4: Anything else that is worth knowing about the 2000 ? I had a 1200 back in the day, so I am aware that the stock machine is basically just a box 500, but anything of note?
Like others have said, cut off the battery.
You might want to consider a megachip. Get it now. I think amigakit has them. Historically, they've been pricey.
You might want to consider a indivision at some point. I dont have one, but it's on the shopping list.
I also have a deneb in mine. It's expensive, but you get a lot. It works with usb keyboards and mice in addition to thumb drives, printers, scanners, drives, and just about anything else. People have even plugged USB sound cards into it and made it work. I have plans to experiment with that as well. I think even usb ethernet works. It requires at least a 68030 iirc.
There's also the bridgeboard thing. I have a 286 version in mine. I just plugged it in though. I haven't had a chance to play with it yet. I hear that you can put a network board on the PC side and run a goofy driver that lets the amiga side use ethernet.
brian