My experiences with HP support and the quality of their laptops has been less than stellar.
I could detail my experiences with the Presario X1000 for you, but thats a novel waiting to happen. Summary: X1000 had a design flaw which caused the video card to warp/melt and it happened to me every 6-9 months. After much drama both good and bad:
*The Indian guy let me extend my warranty even though he knew my lappy died out of warranty (although my sob story of how it died when my final projects were due had a nice effect on this)
*After the third time it died I tried to fight for a replacement and was denied one by the case manager. However, after I sent it for repair, and they sent it back unrepaired--they agreed to a replacement (I believe HP officially does not replace until AFTER the third repair). I am still not sure whether the case manager/technicians hooked me up by deliberately not repairing it...or if they simply did not have the parts to fix it.
Now I have a rev1 dv4000 and I am fairly happy with it although it is still a downgrade from the X1000 (X1000 had 1680x1050 res with Radeon 9200, and this lappy has crappy Intel graphics with 1280x800 res) but they did comp me with a DVD burner and upgrade to 12 Cell battery.
The dv4000 is not extremely solid, but its what you expect for the price. If you push on the plastic in places there is a flex that isn't there with higher end notebooks (especially business class ones like IBM/Lenovo). Also the 12 cell battery doesn't seem to sit perfectly flush in its socket, one corner juts down like 1mm but it works fine (wouldn't get the 12cell, it is HUGE and greatly bulks up the laptop). Build quality/design could be better, but its not bad, C+ for build quality, and B+ for aesthetics (looks very sharp and classy, but there are definately cooler looking lappys out there).
Screen is nice, bright and clear. I wish the resolution was higher, but its definately good enough (the X700 would struggle with games at 1680x1050 anyways so it might be better for games that you can stay at Native resolution when you play).
The wireless card/antenna are excellent and I seem to be able to catch reception when my buddies can't (and they have Intel wireless cards as well...maybe it has to do with how the antenna is integrated into the case?).
Keyboard is nice, very comfy to type on, and the mouse pad is also decent though I much prefer a trackpoint.
Speakers are great, some of the better ones on a lappy (front mounted is the way it should be).
Overall the laptop is decent, especially for the price.