First time runner looking for advice Options

[Symber]

Hello all, this is my group's first time running SR and we're really looking forward to it. I was hoping to get a little character advice. I found a pretty good excel spreadsheet that fills things out as you go, but I wanted to be sure that I don't have any glaring mistakes. I'm pretty open to suggestions too. My goal is to be powerful enough to keep the min/maxers in my group in check should the need arise (they're under mind control etc). The other runners are a Face, a Gunslinger Adept and a Rigger.

First I have one question before I get into the character sheet. My runner is a magician that has attempted running once before, almost got killed/is badly burned. Due to this I took Physical Mask and a Sustaining Foci. In theory the foci keeps the spell maintained on him keeping his old normal physical appearance. Is this something likely to make him a target and/or get him killed?

Here's his sheet:
[IMG=http://img718.imageshack.us/img718/3637/miragei.png][/IMG]

He also has a trained pet fox. I've also been toying with the idea of staying invisible with the fox around so people think he is a fox shifter or just another runner's pet fox until they gain his trust. This I imagine would draw the same kind of magical attention as the Mash would.

Edit: Almost forgot! We're playing 4th using the 20th Anniversary core rulebook, Arsenal, Runner's Companion, Running Wild & Street Magic. We have 407 (I know weird number, eccentric GM) build points. I think that's all for now.