Oh, the A3000 is hardly all
that cramped - you should look in some of the godawful late-'90s micro-towers I've had to repair! The 3k is
palatial compared to that, and while it's annoying that the drive support is on top of everything, it's really not that much trouble to remove.
Screw 040 cards w/ their large power consumption and fan reliance... who's gonna bother with that shit?
Oh, I dunno - if you get the right card it's no big deal. Mine has a GVP 040 card, and it doesn't even scrape the underside of the drive carriage, or run all that hot.