John Piper has a wonderful sermon on this topic and he does a good job of answering this question. Should the church today seek signs and wonders? The Apostles did and we, if anything, have more of a need of the Holy Spirit's presence and gifts than they did. So, the short answer is, "yes" we should seek signs and wonders for the proper reasons and in the right manner.

I hope that you are blessed by Piper's sermon:
http://www.desiringgod.org/ResourceLibrary/Sermons/ByDate/1991/746_...

Hidden in Christ,
Scott