Hewlett-Packard Close to ArcSight Deal

HP is close to a deal to buy security software maker ArcSight (ARST). The transaction would be worth about $1.5 billion, or a little more that $43 a share. That's a 24% premium over where ArcSight's shares traded on September 10.

Dell Prepares to Counter HP Bid for 3Par

The battle is heating up. After a $1.6 billion counteroffer from Hewlett-Packer Monday, Dell is said to be preparing a sweetened bid for data storage provider 3Par.