I think my stats are fairly comprable to yours, and I am a SAHM.
Dh makes slightly more (about $120,000) but our mortgage (plus HOI and property tax in escrow) is $2500, so it probably roughly balances out.
We have 4 children. We can afford to put all 4 in the activities they want without major financial difficulty. Most of the activities they do are fairly inexpensive, but one of my kids takes fencing lessons for $150/month (plus purchasing of uniforms/equipment) and that is our most expensive activity. The others are more like a $150-200 registration fee for an entire season (baseball, lacrosse, football)
We go out to eat once a month for a "date night" at a restaurant where we generally spend about $100 total. We will rarely go out to eat as a whole family...but that's because we're a family of 6...when we only had a baby, we went out a lot more!
In general we'll take 2 vacations per year, but they involve driving instead of flying, camping instead of staying in nice hotels, and picnicking instead of gourmet restaurants. I think, compared to most women, I spend very little on clothing and accessories.
I don't have any nice jewelry except for my engagement ring, and we don't have the latest and greatest in technology (no iphone, no ipad, not even dvr on our tv!)
I think it's definitely possible for you to SAH on that salary...but depending on how you've been living your life until now, you may need to make some adjustments
