I also think that the Seek series is a bit much to pay, before you know what kind of riding you like. Most people that commute end up liking to do another type or riding after a short while. Some like to ride on the road, others like to ride on dirt trails, etc. A LARGE number of people that I know that have gotten a hybrid or "do everything" bicycle regret it later.
If I were you, I would pick up a decent used bike with more gear choices than on the Seek, and make up your mind after a few months of riding what kind of "new" bike you want to get later. Get something like a name-brand mountain bike with stiff front forks (put on slick tires for commuting), or a similar road bike that has rear rack mounts (25c-32c tires for a smoother ride at first).
Think sturdy, mechanically sound, and that can easily be converted to its native type of riding later. For example: it is very difficult to put traditional road-bike handlebars on a bike set up with flat-bars (brake levers and gear shifters), but you get a cheap front fork and put knobby tires on, and you have a decent mountain bike.
You will soon figure out what kind of bike and riding appeals to you. Until then, get something less expensive to cut your teeth on.