I'm sure a million people have chimed in on what bandsaw is best which they prefer etc. But hey, why let that stop me :)
I have the G0555. I absolutely love it. I use it all the time for quick cuts here and there, I've resawn 8/4 6" alder for bookmatched drawer fronts (worked great) and I even rip most of my wood with it (and then let it aclimate again and do final jointing/planing/ripping). I love it. I mostly use a 1/2" blade and have been very happy (if you haven't figured that out by now). I must say that I don't think I'd honestly be happier if I had spent more on another unit. Certainly not twice as happy ;)
Now, as a side note, you mention you want the riser block. I assume you want to resaw stuff bigger than 6". That might actually push the motor a bit. I don't know that you'd want to do that. Although it would just entail pushing the wood through really slow, your call. I mean if you're _rarely_ going to do that I wouldn't spend the extra cash on it. If you're planning on doing that pretty often then I would rethink your purchase because I don't think the G0555 is really designed for that (as a constant use I mean). I would look at a 2hp model personally.
In my whole shop (and I have pretty much all the power tools -- I'm never done collecting hand tools ;) I only have two items that I would upgrade if given the chance. I'd like an 8" jointer for the longer beds and I would upgrade the bandsaw as well. But here's the weird part, only because I use it the most and I "presume" it would be better to have more power there ... who's to say it would really make that much difference.
Heh, not sure I've helped, but at least I own the product you're looking at and it might help having my perspective as a current owner.
Good luck, Mike