config for a low end 710 or 720

Looking for recommendations (they already have the BP) for a low end system,
Replacing a couple Advanced 36 systems, one local, other will be remote via vpn.
Will run programs in s36 mode, but hopefully they will add newer features (email, advanced printing (pdf), some edi, light web hosting)
Each system currently has 3 - 5 users each.

Considering the 8202 DAT tape drive - i see they now offer a usb attach.
2- 146 Gig drives mirrored (maybe 4) - (is there a better option? have occasional need for up to 80 gig useable)
tower model (under a desk)
i7.1
legacy dev tools
sql development tool
system i access
(having trouble finding weblink of software products avail to review...


How much memory needed to drive system and up to 10 users and couple printers, with room to expand?
How limiting is the entry 710 vs entry 720?

Since it appears 1/4 inch cartridge tape not supported, am expecting to ftp the libraries from an intermediary (520) system. Any other options?

Even though BP will answer these, I appreciate the experience on this list.

Jim Franz