Re-licensing Informix V4 from AIX 3.1 to AIX 4.2 - considering WinNT

Hi All, We currently operate under the following conditions: SE V4, SQL V4, RDS V4, AIX 3.1, RS6000/320, 64 MB RAM. As you can see, old kit and old software :-) In a planned move to AIX 4.2 I have to re-license our Informix products. Being new to RDS, having used 4GL previously, I have been made aware that RDS is more memory hungry on a per user basis. Given that I am to move to AIX 4.2 and an upgrade to a RS6000/370 with 96 MB RAM, would any users care to comment on whether they consider the proposed box will be suitable. There would be approximately 20-25 concurrent users at any one time. AIX 4.2 is also more memory hungry than AIX 3.1 but perhaps not enough in itself to suggest a massive jump in RAM. As an aside, is this version of Informix supported on WinNT? If I were to buy Informix fresh for a Unix box we would be talking a lot of money and so to save on cost a re-license our current release for whatever plaform we go to. Also, as a Unix techie, when installing Informix it really is a breeze; the database and applications sit in file systems and in general it is fairly resilient. If the Unix box crashes, the file systems are repaired automatically by AIX and then we do whatever it takes to get the Informix database back into shape. Is NT a good platform for running Informix? What cost savings are there for Informix on the NT platform? I think that is all for now :-) Cheers, Ian. Tedious 'office speak' part 3: "Let's go scuba in the think tank."