WAVEHILL INTERNATIONAL TO MAKE ACQUISITION <Wavehill International Ventures Inc> said it has agreed to acquire Personal Computer Rental Corp of Coral Gables, Fla., in a transaction in which shareholders of Personal Computer will receive shares respresenting about a 25 pct interest in the combined company. The company said it will have about two mln shares outstanding on a fully-diluted basis after the transaction. It said after the acquisition it will infuse Perconal computer with cash for expansion. It said Personal Computer now has 26 franchised locations and plans to add over 30 in 1987, seeking eventually to expand into 420 markets in the U.S. and abroad.