Aha. It's not like I've been using fountain pens and related items as my main distraction recently or anything like that.
The Lamy Safari is an excellent pen in my opinion. It's relatively cheap but writes very smoothly and reliably, and is quite comfortable to hold. You can uncap one after days of not using it and it will start off almost like you'd just put it down. You can also change the nibs too, and new ones are only four quid from cultpens.com.
My main pen is a Safari with an EF nib (I am ordering a 1.1mm italic nib just now). I have one with an M nib as well, but that writes a little too wetly for use with most paper. Decent paper like you get with Rhodia or - oddly enough - Red 'n' Black pads, is fine.
I would advise you to get a convertor - you can also buy those from cultpens - because that lets you use proper ink. For general jotting I use Noodler's Bulletproof ink, which is waterproof after just a few seconds as it reacts with the paper. Diamine ink is quite popular as well, and comes in a vast number of colours. Filling pens with convertors is also better for them - it cleans them due to the ink flowing both into and out of the pen, and it makes it much easier to wash a pen out with water.
I'm only really getting started on the obsession as well. You can do things like have nibs custom filed to your specification, and there's round vs italic vs flexible....