Your specs look like a solid starting point for most projects. As for the OS, it really depends on what you're comfortable with and what your project needs. Linux (like Ubuntu or CentOS) is usually the go-to for its flexibility and cost-effectiveness, but if you’re running Windows-specific apps, go with that — just keep in mind it’s pricier. Regarding GTHost.com, I haven’t heard much about them personally, so I’d recommend checking reviews on trusted platforms like Trustpilot or Reddit to gauge reliability before committing. One last tip: if you’re unsure about bandwidth or IPs, monitor your usage after launch — you might find you need more or less than you initially thought.