I'd rate the Porlex more than the Hario's, as there's slightly less movement in the burr carriers. I've used and own both. I wouldn't personally use either for espresso, if I had a choice. Neither offers either enough adjustment or consistency in grind (too many fines). But they are both ok for Aeropress, or a v60, clever dripper etc, when travelling.
If you want something quicker for the kitchen, that would work for french press etc. as well, then try to get a Solis 166. Starbucks used to sell them as their base grinder the "Barista" (probably the only decent purchase I've ever made in a Starbucks). From memory, they used to sell for around 40 quid when on sale. It'll work for espresso, but I certainly wouldn't recommend it.
Milesy's comments above on espresso machines and grinders is spot on. Good brewed coffee can be had easily and cheaply. Good espresso, not so much. Getting a decent grinder is key though.
My vote.
Travelling: Aeropress + Porlex Mini Slim
Kitchen: Solis 166 (will get you started, if you don't intend to go the espresso route) Iberital MC2 as a minimum (if you might want to go to espresso sometime in the future, the downside of the MC2 is that it is slow and cumbersome to adjust, if switching between brew methods) + Gaggia Classic as a minimum, Rancilio Silvia as a good entry level machine. Good espresso is not cheap.
Totally off the wall, there is also the Mypressi Twist (quite a lot of hassle for an espresso), but that would still require a decent grinder. More info (probably too much) on my mate James' blog:
http://www.jimseven.com/2010/01/23/mypressi-twist/