If you're looking for a good, yet powerful all-purpose netbook to handle such tasks, including visual novels and less demanding work I can recommend you the Asus Eee PC 1215N.
The main features are as follows:
- 12" WXGA (1366x768) 16:9 LED-backlit screen, which has some really good parameters, including angles of view and picture quality
- Powered with a dual-core Intel Atom D525 processor, with a 1.8Ghz speed; despite two cores, it supports multithreading with 4 threads (each core handles two threads).
- Optimus-driven NVIDIA ION2 GPU and Intel GMA 3150 chipsets (Opimus technology decides which card will work depending on different needs for GPU power - 3d games, demanding applications - ION2, internet, documents, windows, basic apps - Intel GMA).
- from 2 up to 4GB's of DDR3 memory.
- A 250GB/320GB/500GB HDD working with 5400rpm + 250GB/500GB online Asus webstorage.
- USB 2.0 and 3.0 ports and Bluetooth 3.0 as well as WLAN 802.11b/g/n.
Since I sell netbooks and laptops and I'm a tester as well, you can rest reassured - It's really one of the best available netbooks on the market right now, sporting enough power to rival with good low-tier laptops. The design is neat. ION2 is a really decent budget GPU with enough power to run even most of the newer (not the newest ones, they won't even execute on this one, and even if they will, you get 1-12FPS at most) titles on lowest details and lower resolutions quite well (20-38FPS), with much older games playing well in mid-max details on native resolutions. It's able to playback 1080p HD H.264 movies (720p with ease), as long as you know how to use DXVA (K-lite Codec Pack is the best one for this); You can watch your favourite animu and movies without any problems at all
All of Visual novels and japanese SLG games, such as 3D Custom Maid work great without any problems at all (I've tested a few titles - from older and less demanding ones as Clannad or Planetarian to those really demanding ones, such as Quartett or Girlish Grimoire Little Witch Romanesque, which run on full GPU acceleration when possible. The same goes with Ren'Py - I haven't got any problems running Ren'Py made visual novels on this netbook (even Cradle Song preview worked quite well, despite it's bloated graphics). Multitasking on this netbook isn't an issue (just be sure not to open way too many apps or overload the CPU with some very resource-demanding apps as it may choke the system). You can surf the net, download files through P2P, listen to your favourite music and work on documents or program in Ren'Py simulationously without any problems.
It's only disadvantages are the materials it was made from (not that they are prone to brake fast, not at all; it just isn't aluminium casing, like in their other cheaper models), it's keyboard design and execution (some say it isn't made very well and is prone to deform while in use) and overall 3D performance, which could be much better if not for the CPU, which is a bootleneck for the GPU in this case... but we don't buy those to play killer 3d games on them
The prices range from 300$ up to 499$ for the newest models in series. Be sure to check out if it really has those 3.0 USB ports instead of 2.0, because older series were ported only with 2.0 standard.
I'm planning to buy this one soon (or it's successor, we'll see about that) - it's more than enough for me to work, have some fun and manage my hobby-driven needs with ease. You should buy this one as well - you won't be dissapointed, believe me.