Buy this Orange pen (you can thank me later)
This is a JINHAO 159--one of the best bargains in the world of cheap, Chines fountain pens. They're generally available from the usual sources for less than $10, but today, Goulet Pens is offering the Orange version for $7.95
Why do I recommend them? This is a Grande-sized pen with a large, smooth-writing, Number 6 nib, that comes with a converter--that's the value part. The fun part is just writing with one. If you've ever wondered what Montblac's thousand dollar-ish monster Meisterstück 149 would actually feel like in your hand, this is your ticket to the cheap seats; the two share nearly identical measurements.
Here's a link to the sale:
By the way, if Orange is not your thing, Jinhao 159s are available several other colors for a few bucks more. Don't forget to search for this brand on Amazon too; their prices are often less...
PS: those are Parker 51s on the right. I recommend them too ;- )