Intel and Microsoft are far better choices.
HP is currently a garbage company. They suck at software, like no one else. No wonder they can't break into that. Their hardware is spotty. I like their printers, but nothing else.
Intel is gamble I think. The world is moving away from desktops and laptops to tablets and smart phones (and soon to be other form factors), and Intel isn't strong there. They have brilliant people, but sometimes its very difficult for a big company to change direction quickly enough.
Microsoft isn't going anywhere with Ballmer at the helm. He doesn't have the vision. And, like Intel, the world is moving away from what has been their bread and butter. Did you know that if you include tablets and smart phones, Microsoft is now around a 20% market share for the computing market? They have the resources to stick around for a long time, but I don't see any long term growth until Ballmer is gone.
Google is positioning themselves really nicely long term. Not sure about valuation though. RIM might be worth a gamble, but it's really a huge gamble.
IBM is a great company; Warren Buffet bought in not too long ago.
Apple was awesome, but Jobs' vision was so huge I'd be nervous. They'll probably keep going up for a while at least though. I wish I had put $10k in when I started to believe in them way back... it was $23.75 a share then, and split once so that would be worth something like $463k now. *sigh*
Oracle is probably solid. They've always been good at monetizing their position.
Facebook is icky, but are in such a strategic position..