Thanks for the comments!
I was more wondering about personal thoughts on the quality though. I mean, I know if the specs match, then it should work -- but I am skeptical that it will provide nice clean power as reliably as an actual HP replacement.
That said -- I found a brand HQRP, that seems to be fairly reputable. Better than buying a completely no-name adapter IMO. I felt confident enough to go ahead and buy two of them anyway. (so I have one everywhere I use it, so I dont have to carry a cord around. Lazy.... I know)