Jack, what metal would you suggest using for gutters? Is galvanized
steel an option (I haven't run across it), or would you suggest copper
if it can be afforded?
Typically, gutters are quoted by the linear foot plus some amount per downspout, so the type and complexity your roof will make a difference. If I recall correctly, you have a gable roof with a separate porch, so you will probably have four to six downspouts (one for each side of the porch roof plus one or two for each side of the main house depending on the size).
It's probably a project you could tackle yourself, but when you purchase sections of gutter (10 foot sections), you will end up with seams where the sections fit together. I think copper gutter is typically soldered together. This type of installation might require more maintenance and repair than a "seamless" installation where the entire length is fabricated on site from coil stock. You would have to hire someone to get the seamless gutters.
Make sure that the metal drip edge (under the shingles all along the edge of the roof sheathing) is in decent condition and that the gutter board is not rotted before you install the new gutters. Probably any contractor you have over to give you a bid will look for those items, but if you do it yourself, it would probably be a good idea to make any underlying repairs at the same time.
They might also try to sell you on fascia wrap. In general, it's not a good idea to enclose wood with a non-permeable wrap - regardless of what the contractor says, water will get in and the wrapping will keep it there where it will destroy the wood. People make the decision to do it because it is often less expensive than replacing and painting damaged wood, particularly sills and trim.
I have used Performance Gutter and Construction for some gutter repair/replacement. Richard Bainter - 278-8052. They carry liability and workers comp. There was one callback and they came out promptly to correct the mistake.
I have found that gutters and fascia tend to cost a lot more than I think they should based on the time it takes and the cost of materials.
Steve