@sim085
IMHO, your stock A500+ already with 3Mb (1Mb CHIP + 2Mb FAST, not sure) and harddrive will make you happy while exploring Workbench and other apps. I suppose that GVP HDD controller you bought could accept even more FASTRAM, and also getting A501+ would max-out your CHIPRAM (maximum 10, but 5-6 is already enough).
I went through all of this several times, with both A500 and A2000 (have both machines, besides A1200) so be sure I'm talking about things happening when you realize you could move further. Games, for instance, are a bit troublesome to operate under KS3.1 since the large part of them are made for most compatible KS1.3 environment; floppy drive wear-out over time and floppy disks are prone to failures, read errors, not to mention proven lower quality of HD disks over ancient DD disks (could be also problem of medium electrical features or data read/write technology). For that matters, we have WHDLOAD, a real masterpiece of Amiga software development. In short, WHDLOAD allows good old games playable from harddrives, with complete installation procedures, game fixes/patches, removed copy protections, trainers and save game features. Of course, now you can exit game at any time and crawl back to host Workbench OS.
Minimum requirement for WHDLOAD is 68000 CPU, 2.0+ Kickstart, 2Mb of RAM and a harddrive. Some games need some more RAM, but generaly 1Mb CHIP and 4Mb FAST will cover almost 100% of all available WHDLOAD games.
I have a simialr setup on one of my A500s, have played many games with decent retro-feel, just the way I used to. However, a fair share of my favourite games were unstartable since their install procedure requires at least 68020 CPU. That's the part when I realize "step further" moment. I need an accelerator.
You might hit that mark even sooner, depending what are your biases towards Amiga games (what a stupid thought, at least brave stupid to post it on this forum).
:-D
Since your GVP HDD have no passthrough connector, you can write-off any side-car accelerator, so get a piece which sits on CPU on motherboard bellow keyboard. Derringer is a great one, you are lucky someone has offered you in public. If you have the cash, this is no-brainer.
Get it. A500 accelerators are rare, expensive and usually tend to change owners only in weird circumstances.