Help with Character Creation - Making an AI, Player looking for help creating an AI hacker/rigger character Options

[Bugfoxmaster]

Hello, Dumpshock!

I've recent been asked to join a soon-to-begin game of Shadowrun 4A wherein I'll be needing to play ther rigger-hacker. I thought it'd be particularly interesting and fun to try playing something slightly new this time, and chose to play a metasapient AI. So, here're the rules:

1. We're using Karma-Gen rather than BP. I've been given 900 Karma to play with - the first two hundred that I convert to Nuyen gets me the usual 2,500 per Karma point; the following 100 are at 1250 Nuyen to 1 Karma point, and the following 100 are at a rate of 625 Nuyen to a Karma point. No more than 400 Karma can be converted to Nuyen.

2. We're using the 4A rules for Attributes - raising one to a new level is 5x new attribute level.

3. I've been given Intuition+Logic * 3 Free RANKS of Knowledge and Language Skills, but they have to be spent BEFORE I buy further ranks with Karma.

4. 70 Points each of Negative and Positive attributes.

5. Allowance to buy any of the AI special qualities (like Authority or Emulation) from Unwired for nuyen costs to be determined by the GM. Are any of these particularly useful or good, and if so, would you suggest any?

So... given these rules, does anyone have any suggestions as to what to do to be the most effective hacker possible, with a side-order of as effective as possible rigger? Are there any particular pitfalls to avoid with playing an AI, or certain things that are pretty much must-haves? I could use all the help I can get, since I've never played an AI, rigger, OR hacker before. Thanks in advance for any help, and if you have certain ideas or set-ups that you think I should ask my GM about, please don't hesitate to leave them too.