jValdron: Good for you getting a 3000! Save2600 on here just loves his.....
As for problems installing Directory Opus.. what version did you try to install? I use Dopus 4.16 exclusively, as I just didn't like the later versions. Anyway, there are slightly different versions of basically the same DirOpus4, strangely one found on Aminet wouldn't work on my 1200T. So, I say scour the Net, look for old coverdisks, etc. You should be able to find a version of DOpus that works on your system.
As for other applications... Well, some ppl. here might say that 4MB fast RAM is plenty..... But if you want to get into applications more, you should think about getting more RAM. For 'common' tasks, 2MB Chip/4MB Fast might be enough....
Ahh, but I'm a Lightwave nut... I have a single scene that needs 128MB to render.. Yikes!