The first time I played through this game was the week of it's launch, I completed the game in about 4-5 days, before any of the mods etc had time to appear. I just bought it again second hand. Are there any patches I should download, etc?

I see MS has 1 patch, but it's mostly for online play, and I don't play online. Is there anything I should install to make the single player experience better? I was particularly disappointed once I'd completed the game only to find the level cap was based on cash, and I had about 3Mln at that point, having taken the time to explore the galaxy in the middle of the game. Is there anything that will lengthen the end game, or at least give you something to do once the single player ends. I spent a day killing bounty hunters en-mass once I could finally buy a new ship and mount all the exotic weapons I'd found, but that got old real quick, and there was nothing out there that could even damage me at that point.