I do believe you are a seasoned guy. I suggest you define your skill set and position
judiciously before you send out your resume.
Are you a programmer or a system administrator? My impression is your skill set is not so attracting because you did not use hot lanaguges such as C++ and Java. Of course, that does not mean you won't have any opportunites. Even Fortran guys can find a job! The problem is one has few opportunities.
If you claim yourself as a system adminsitrator plus DBA, do you think you are qualified? Among others, I have to confess you have a lot of experiences. In any case, I
have to say you need decorate yourself. After some preparations, it is not impossible for you to get a job.