Winter driving without PSM?

[svenscot]

Hi everyone. I've been loving the last few months driving my 2001 Boxster S but now in a real dilemma. A few weeks ago I had the back end slip out in a tight bend on a greasy damp morning. It wasn't real cold then but getting below 40 now and I know not to drive on the Z summer tires. Now I'm really regretting not getting a car with PSM.

I need it as a daily driver (in NJ) although can avoid driving it if I know its going to snow hard. I'm torn between:

1) investing in winter tires
2) selling it and buying another Boxter with PSM + winter tires
3) selling and getting a different all wheel drive car. 911 C4 ( but more $$$ and heavy back end??), Audi TT an option but just doesn't give the thrill of driving the Boxster does.

I love the car i have and don't want to part with it, but spooked now. Can anyone help me decide? Would winter tires be enough or is winter driving really out without PSM?

Thanks in advance