Hi Andy
I'm also new to the sport & have a similar situation as you - after an allrounder (I'm prob more 50% surf / 50% flat water - and want to be able to have a kid on the front) & about the same weight and an inch or 2 shorter. I also didn't want to spend the $$$$ for a top line board and I was also after a 2nd board for the wife so I was on a budget of around $1000 per board.
I have riden both shortboards and mal's for about 20 years so I have an understanding about shape/design etc. and what different features will offer but as I said no experience in the sup world (where all dimensions are much bigger). I decided to buy a couple of 'Atlantis Halo' from the surfboard warehouse after having a chat with both the owner and shop manager (they both surf and have good knowledge). They have a shop on the Gold Coast & 1 on the Sunshine Coast, or you can get them online, so it would be easy for you to check them out (they also have other boards around the same price). If you drive to the GC you could also check out the Gulliver at the same time & see which best suits you. I liked the shape of the Atlantis Halo and felt it offered good value for money as a starter board, and if I get hooked and the shortboard starts getting dusty, I can alway upgrade to a 'high performance brand name' board down the track. . The way I looked at it was if I paid $1500 - $1700 for a brand name board & sold it for $1200 - $1000 I've lost $400 - $500. If I pay $900 for a new board I only need to sell it for $500 for the same result (or my kids inherent them).
Was my decision a good one? - time will tell, but it's what suited my situation at the time and it has given me the chance to get into the sport. I've only had 1 quick paddle so far (15 mins shared with wife) on flat water and it felt good but not enough usage to give any reports at this stage. (I did a few demo days on the Starboards , Naish etc so I do have something to bench mark against.) I won't get the chance to spend anytime on it till next weekend but more then happy to give you a report if you want one (I have done a few lessons but my lack of technic may cloud the results some what

!). As I stated earlier I'm no expert and others on here with knowledge and experience may have a different view!
I went for a 10'6 for the wife (it the biggest board I could get that will actually fit inside my Prado so she can go for a paddle without me & not have to put the board on the roof, and no doubt drop it) and a 10' for me (a bit easier in the surf and slightly less glide then the 10'6 so I don't have to slow up for the wife as much when on the flat water).
Husky