Really, buy boots now. If you have a pretty average foot, you might get by just fine at big box retailer, but any oddities, and we all have a few, will be better served by a proper boot fitter. This purchase should be dictated not by what they have in stock nor brand, but rather fit.
As to ski's, DO NOT buy a set of begineer skis. They will be quickly outgrown, especially at your weight. That is not meant as a jab, as I, in fact weigh even more.
First, try to get an idea of what really lights your fuse. Do you want to make giant arcing turns down blue groomers, jib in the park, snap off short arcs, play in the bumps, or ply bottomless powder; albeit the last isn't likely with your location. Once you have a better idea of what you like about skiing, blow the $20 on realskiers.com, and plumb the equipment reviews, especially those from 1-3 years ago. Also, ask questions here. You should be able to quickly build a list of likely candidates.
Although our local ski hill does a great job, they don't have any kind of demo program. Haven't had enough scratch the last couple of years to afford a trip out west, where demos are more common. Not to mention, a ski that I might love in soft western conditions might not be near as fun in the mid-western ice that I usually ski. This year, I did the following.
For less than the price of one spanking new set, I found 2 pairs of decent used skis. I bought a really nice pair of 4 yr old Atomic 9:18's (binding included) at the local hill, ski patrol, fund raising swap for $175. And, just last month, I scored a primo 3 year old set of Volkl Vertigo Motions (also with integrated binding) from a seller here for $200. The Atomics are OK, just not quite beefy enough for my 210lbs, but the Motions suit me to a T. At the price I paid, I should be able to flip the Atomics with little to no loss. Net gain, a nice use set of high end skis, that I should be able to ride for the next 3 years of 15 day seasons. And, if I keep them nice, I might even be able to get $50-75 for them at the end of that period. Skiing is possible for the economically challenged if you don't have to have the latest and greatest.
I've seen a lot of 2-4 year old gear sold on this site for very reasonable dollars. Most sellers are generally pretty up front if asked if the ski they are selling might be appropriate to the task and purchaser.
Jump in, the snow is fine.