Need roofing repair by an expert or anybody do it yourself?

[Diane Mettlach]

Need a couple of roofing repairs done and do not know if I actually need a roofer to do it.  Has anybody ever attempted pretty simple roofing repairs themselves?  Or, do you know of a link to a good website that shows me how?  Or, can somebody suggest a roofer in the Houston Galveston Texas area that gives investors a fair price?   I do about 4 or 5 houses a year and most need new roofs!