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Hamracks one is mains powered (I own pretty much the same).
Personally I'd get a hefty mains powered SDS (the Titan ones seem like good bang for the buck) and then just a decent normal battery powered drill for the vast majority of stuff.
Unless you have expectations of using the SDS up a ladder a lot or all day long then the weight shouldn't be too much of an issue and the vast majority of the time you'll be using the other one. (This is based on occasional DIY use rather than you often needing an SDS).
On the subject of SDS drills. Any recommendations?
My FiL has an ancient Bosch mains one that he swears by, which for its age is a good recommendation, but its there anything from stopping me from spending 20quid more and getting a new battery one like @hamracks one.