It would, yes, possibly be easier with an estate agent involved, but the place I like is just up for sale by the owner.

Any tips/things to watch out for/etc?

You definitely DO NOT need to hire an agent. A real estate attorney at your local Title Company can process all of the paperwork for a fraction of the cost. Your state requires certain documents to be filled out. Your title company has all of these forms for you.

Make sure you get pre-qualified at your bank.
Make sure you get a homeowner's inspection.
Make sure you conduct your own appraisal and/or hire an appraiser.
Make sure the contract/offer has "pending a satisfactory home inspection".
Do not sign anything without having your attorney look at it.
Make sure you get a Title Search.