I'd say that your home computer is Ok. I don't know about your work computer - it might be a bit light on. Many users recommend over 1GB RAM (although that is all I run at present).
I am in the process of buying two new computers and have virtually settled on a quad-core PC running XP Pro64 (Vista is not yet recommended), 4 GB RAM and (possibly) a NVidea 8800 graphic card. Dual processor Macs are very nice, very fast but a bit more expensive, and I've got too much PC software that I would also have to update. If I didn't already have PC's , I'd probably buy Macs.
I moved from Autocad about 8 years ago and found it very frustrating. (I'd been using Autocad since version 9). I stuck at it because I thought (and still do) that 3D was the way architectural drawing and presentation was going - and because ArchiCad was fun!! I learnt by doing a project completely in Archicad - took weeks and when it was nearly finished, I stuffed it by removing a wall in elevation, and destroyed the model (not realising that ArchiC puts everything in ONE model). I redrew the who project by hand in about 3 days! A nasty lesson.
You must stick with it for your first project - and your boss should allow you to do so.
There might be tears, incredible frustration but at the end, a bright light. I also attended courses and did lots of tutorials. 'Framework' was one of my most useful books and I still refer to it. I finished up teaching it at our local TAFE college for about 4 years.
Another very useful source is the ArchiCad 10 virtual tutor. It is a DVD which takes you through all the common, and some less common, commands and explains how to use them. Can't speak highly enough of it.
You speak of missing the command line - my pet hate was ArchiCad's way of doing offsets - I thought that this was so clunky compared to Autocad! Now, I can't remember how I used to do it. It took me a year to unlearn my Autocad ways.
Good luck and keep at it. If you enjoy designing, rather than just drafting, ArchiCad will give you enormous pleasure and lots of fun!
Cornelis (Kees) Wegman
cornelis wegman architects
AC 5 - 26 Dell XPS 8940 Win 10 16GB 1TB SSD 2TB HD RTX 3070 GPU
Laptop: AC 24 - 26 Win 10 16GB 1TB SSD RTX 3070 GPU